A long read about seeing people in extremes

Splitting: why the whole picture can disappear

How the same person can feel wonderful one moment and impossible to trust the next.

You can know someone has been kind to you and still lose touch with that feeling the moment they hurt you. For a while, the hurt is the whole relationship.

Psychology has a name for this all-good, all-bad shift: splitting.

Two views of the same person, before and after a disappointment:

All good"You understand me completely. You're perfect."
All bad"You never cared. Everyone was right about you."

Fair warning: this is a long read, so get comfortable. I'm going to start with an ordinary scene and then go roughly in order: what the early theorists proposed, what researchers have studied since, and how people learn to stay connected through mixed feelings. Where a diagram simplifies things, I'll say so.

By @ChrisNov 10, 2026Ten parts, about 25 minutes
1

When the biscuits run out

3:00 pm
They're playing together. Right now, mum is wonderful.
No more biscuits. I hate you!
3:05 pm
"You're mean!" In this moment, the good mum is out of reach.
3:15 pm
A cuddle, and mum feels wonderful again. The anger has gone.

A two-year-old is having a lovely afternoon with her mum. They've been playing, and she's had plenty of attention and a hug.

Then mum says, "No more biscuits."

The child screams, "I hate you! You're mean!"

What she seems to lose in that moment is the thought my lovely mum has said something I don't like. The person in front of her now feels entirely bad. The warmth from five minutes ago? Hard to find.

Ten minutes later, mum offers a cuddle, and now she is wonderful again. Each feeling seems to describe the whole person for as long as it lasts.

You've probably watched a scene like this. Young children are still learning to manage frustration and mixed feelings, and psychoanalytic writers used moments like this one to explain splitting: keeping the comforting version of someone and the frustrating version apart.

In adult life the question changes. It becomes how often those shifts take over, and what they do to a relationship.

2

What splitting means

Splitting means experiencing yourself or someone else in all-good or all-bad terms, with little room for the other picture while that feeling lasts.

All good or all badA mistake can seem to change who someone is. The person who felt loving yesterday now seems to have never cared.
Hard to hold togetherYou may know the relationship has a history, but struggle to feel its warmth while you're hurt or angry.
Yourself, tooThe same shift can turn "I did that well" into "I'm worthless" after one mistake.
The person I love and need feeds me, comforts me, stays close …is also the person who hurts me says no, disappoints, leaves the wall keeps the pictures apart
The wall represents keeping the comforting and frustrating pictures of one person apart.

In psychoanalytic theory, splitting is a defense mechanism. That's something the mind does, usually without conscious choice, to manage feelings that are hard to bear.

So what is hard to bear here? Having to hold this thought:

"The person I love and need can also hurt and frustrate me."

Think about what that asks of you. If you depend on someone to feel safe, being furious with them can be frightening too.

The psychoanalytic explanation is that keeping the good picture separate protects it from that anger. There is still someone entirely comforting to turn to. But only while the two pictures stay apart.

3

Two ways to picture it

Imagine a sky with some sunshine and a cloud moving across it. Two people are looking up.

  • Person A can describe a mixed day. The cloud changes what's happening now without wiping out the sunshine that came before.
  • Person B experiences a perfect day until the cloud arrives. Then the whole day feels ruined, including the part that was sunny.

Person A: a mixed view

Some sunshine, some cloud. Still a mixed day.

Person B: all good or all bad

The whole day is ruined. It was never any good.

The dimmer switch stands for being able to notice degrees and mixed feelings. The on/off switch shows how quickly one feeling can take over the whole judgment.

Here's a second way to picture it: photographs and a film.

One photograph shows a kind person. Another shows a cruel one. A film lets you follow the moments in between and recognize the same person across both.

Splitting can feel like having only the one photograph in front of you, with the rest of the story temporarily out of reach.

Five moments with the same person

  1. kind
  2. cruel
  3. funny
  4. cold
  5. kind

Separate snapshots: each moment feels like the whole person.

4

How the idea developed

Here's something that often gets lost: the writers who used the word "splitting" didn't all mean quite the same thing.

Freud described contradictory attitudes held apart. Klein made the good/bad divide central to her account of early emotional life. Later theorists brought those ideas into their work with adult personality and relationships.

I'll take them roughly in order.

Sigmund Freud: contradictory attitudes

4.1 1927, 1938

Freud used the German word Spaltung, meaning splitting, for a person holding contradictory attitudes at the same time.

You can see it in his paper on fetishism (1927) and in "Splitting of the Ego in the Process of Defence" (written in 1938): one part of the person acknowledges something, while another goes on acting as though it isn't true.

His focus was the ego (roughly, the part of the mind that deals with reality) keeping those attitudes side by side.

So where is the all-good and all-bad person? That familiar account came later.

knows acts as if "I know this is true." "…and I'll live as if it isn't."
Freud's account: acknowledging something and continuing to act as though it isn't true. The two attitudes remain separate.
A terminology note. Eugen Bleuler's word "schizophrenia" has roots meaning "split mind," but schizophrenia and the splitting discussed here are different concepts. Dissociative identity disorder, sometimes called "split personality," is also a different condition.

Melanie Klein: comfort, anger and the same person

4.2 1930s and 40s

Melanie Klein worked with children in the 1930s and 40s. Her account of splitting sits behind much of the language people use today, including some unusual terms for what she thought a baby experiences. Bear with those terms. They make more sense once you see what she was trying to describe.

Comfort and frustration

Klein pictured the infant's early life as a series of powerful experiences. This is before a stable sense of a whole, continuous caregiver has developed. Two kinds of experience stand out:

  • being fed, warm and held, with a feeling Klein described in terms of bliss;
  • being hungry, in pain or left waiting, with feelings she understood as terror and rage.

In her theory, the infant initially keeps those experiences apart. The "good breast" feeds and soothes. The "bad breast" seems to withhold or threaten.

Odd language, I know. What she is describing is a baby relating to what the caregiver does and how it feels, before recognizing the caregiver as a whole person. Klein called these part-objects.

What the separation protects

Why keep them apart? Klein thought the separation protected the comforting relationship from the infant's own anger.

If you rage at the person you depend on, your anger can seem to endanger the comfort you need. In her account of infant fantasy, keeping good and bad apart lets the good remain safe.

One thing to keep in mind: she was proposing an explanation of early experience, which a baby cannot describe to us directly.

The paranoid-schizoid position

She called this organization of experience the paranoid-schizoid position. The name sounds heavier than it is. Each part of it describes something in the theory:

  • Paranoid is the fear of being attacked or harmed by something experienced as bad.
  • Schizoid is the splitting: the good and bad experiences are kept apart.

And why "position"? Klein chose the word because she thought people could return to this way of experiencing others throughout life.

Fear, exhaustion or humiliation could make someone you usually see in a complicated way seem entirely good or bad. Development, in her model, helps you recover a more mixed view.

good breast bad breast Paranoid-schizoid good and bad kept apart one whole mum, good and bad Depressive one person, mixed feelings tolerating mixed feelings fear, exhaustion, humiliation, anger
Klein described states of mind people can move between, including in adult life.

What gets pushed out, and what gets taken in

Two other terms help explain what Klein thought was happening:

  • Projection means experiencing your own unwanted feelings as belonging to someone else. For example, you feel angry but experience the other person as the one attacking you.
  • Introjection means taking an experience of someone into your inner world. In this account, repeated experiences of being comforted help you develop an inner source of comfort.

In Klein's account, this is how feelings about yourself and other people can become entangled. Your own anger may be experienced as danger coming from someone else.

Recognizing one whole person

Then something changes. Klein placed the beginnings of it around the middle of the first year.

The infant starts bringing the comforting and frustrating experiences together: they belong to the same person. Memory and development make a more continuous relationship possible.

She called this the depressive position. Don't read that as a diagnosis of depression. The term means sadness and concern about someone you love. Recognizing a whole person brings several changes in her theory:

1Whole objectsThe comforting and frustrating experiences can belong to one person.
2AmbivalenceYou can love someone and feel angry with them at the same time.
3Guilt and concernThe person you wanted to hurt in anger is someone you also care about.
4ReparationYou want to make things right. Klein connected that wish with care, creativity and the capacity for lasting love.

Recognizing the whole person also makes repair possible in Klein's account. You can regret what you said without deciding that either of you is entirely bad.

And it isn't a one-way trip. She thought people moved in and out of this capacity: stress could bring back the split view, while feeling secure could help them recover perspective.

Ronald Fairbairn: the child who blames themselves

4.3 around the same time

Ronald Fairbairn, a Scottish analyst working in the same period, explored a difficult variation. What about the child who keeps the parent good by becoming the bad one?

In his work with children who had experienced neglect or mistreatment, he noticed that some defended their parents and blamed themselves. He wanted to understand what that self-blame was doing for the child.

His explanation was the moral defense.

A child depends on the adults around them and may have no way to leave. If those adults are unsafe, the whole world can feel unsafe.

Blaming yourself leaves a possibility that blaming them seems to take away: if I can become good enough, perhaps they will love me.

"My parents are good." "I'm the bad one."
Fairbairn's moral defense: taking the badness into yourself can preserve a sense that the person you depend on is good.

If the problem is me, perhaps I can become good enough to be loved.

Notice where the badness has gone. It is placed in the self, which preserves goodness in the person the child depends on.

Fairbairn also described parts of the ego organized around a longed-for, exciting parent and a rejecting one. His model offers a way to understand how an adult's harsh inner critic might carry forward an old attempt to protect an important relationship.

Margaret Mahler: exploring and needing mum

4.4 1950s–70s

Margaret Mahler and her colleagues observed toddlers and mothers during the 1950s–70s. Her separation-individuation model describes how a child develops a sense of being a separate person while remaining connected to a caregiver.

She called one part of that process rapprochement, roughly at 15–24 months.

The toddler wants to explore and discover what she can do. Then being separate feels frightening, and she wants mum close again.

"Go away" and "don't leave me" can arrive very near each other. It is the pull between independence and needing reassurance.

"Go away!" off to explore "Don't leave me!" mum might not be there
Mahler placed rapprochement at roughly 15–24 months: exploring and returning for reassurance.

In Mahler's model, object constancy develops as a child can hold a steadier inner picture of the loved person during absence or frustration.

The adult version sounds ordinary: I'm furious with my partner, and I still know we care about each other. That remembered connection helps the argument remain one event in a longer relationship.

Mahler's model connects these early tensions with the weight that separation, rejection and fears of abandonment can carry later.

One caution, though. An adult's difficulty with separation does not, by itself, establish what happened in their childhood.

Otto Kernberg: the versions of self and other we carry

4.5 1960s onward

Otto Kernberg, an Austrian-American psychiatrist, brought these ideas into his work with adult personality from the 1960s onward. His account helps explain why splitting became so closely associated with borderline personality organization.

He began with a simple-sounding question: what does an emotionally important relationship leave behind in the mind?

The experiences we carry with us

Kernberg described emotionally important experiences as combinations of:

  • a picture of yourself: perhaps small, needy and frightened;
  • a picture of the other person: perhaps cold or rejecting;
  • the feeling connecting the two, such as rage or fear.

He called these object relations units. "Object" isn't a thing here. It means the person as represented in your mind.

Loving experiences leave combinations too: a cared-for version of me, a warm version of mum, a feeling of bliss. Each unit includes who you were with that person and what being together felt like.

bliss feeling cared-for me self warm mum other kept apart rage, fear feeling small, needy me self cold, rejecting mum other
A unit combines self, other and the feeling between them. Kernberg asked how loving and painful experiences become part of a continuous relationship.

How those experiences fit together

Kernberg thought development gradually brought these experiences together. You can recognize both yourself and the other person across them.

Someone who disappoints you can still be the person who cared for you, and being hurt does not erase everything else you know about yourself. That continuity supports a steadier identity.

Why keeping them apart can feel safer

So why would the mind keep them apart? Kernberg emphasized both temperament and environment.

Intense aggression or negative emotion, whether constitutionally influenced or stirred up by difficult early relationships, can make integration feel threatening. Allowing painful experiences near the loving ones may feel as though it will destroy the good relationship.

Splitting keeps them apart, and that defense can persist into adulthood.

Borderline personality organization

Kernberg used this term for a level of personality functioning, broader than the formal diagnosis of borderline personality disorder. His description includes difficulties with identity and a reliance on splitting and related defenses, while reality testing is generally preserved:

Identity diffusionA sense of self that changes sharply with the current relationship or emotional state.
IdealizationThe other person seems perfect, with their limitations hard to recognize.
DevaluationTheir value or goodness seems to disappear when the painful picture takes over.
Projective identificationUnwanted feelings are experienced as belonging to someone else, and the interaction can pressure that person into a matching role.
Denial and omnipotent controlPainful realities may be disowned, or there may be a wish to control the other person completely.
Reality testingThe ability to distinguish inner experience from external reality is generally preserved in this model.

Kernberg grouped idealization, devaluation, projective identification, denial and omnipotent control among the "primitive defenses." Here, primitive describes where they sit in his developmental theory.

His Transference-Focused Psychotherapy (TFP) works with these patterns as they appear in the relationship with the therapist.

Last week, the therapist may have seemed uniquely understanding. This week, cold and rejecting.

The work is to examine both experiences and gradually recognize the same person across them, along with the different versions of yourself in that relationship.

Wilfred Bion: groups split too

4.6

Wilfred Bion studied how groups organize around shared fears and wishes, including dependence on an idealized leader or unity against an enemy.

Later clinicians described staff splitting in hospitals. A patient experiences some staff as entirely good and others as entirely bad, and the team begins to take those sides. Colleagues can end up fighting over the same patient because each has encountered a different side of the relationship.

patient seen as "good staff" seen as "bad staff" the team begins taking sides
5

What later approaches add

So far this has all been psychoanalysis. Later approaches look elsewhere: at thinking habits, emotional regulation and the ability to understand other minds. They also give researchers ways to measure these difficulties.

There is overlap with psychoanalytic ideas, although the explanations differ.

Cognitive therapy: thinking in extremes

5.1 Aaron Beck

Aaron Beck's cognitive therapy calls this kind of either/or judgment dichotomous thinking. "If it isn't perfect, it's a failure." Or: "You forgot my birthday, so you don't care about me." One event becomes enough to settle the whole question.

Is there evidence? In a 2000 study, Veen and Arntz found more extreme evaluations of emotionally charged material among people with borderline personality disorder than in comparison groups. Neutral material did not show the same pattern.

Be careful what you take from that. The result concerns how people made judgments in that study. It does not establish that all-or-nothing thinking and psychoanalytic splitting have the same cause.

neutral topics emotionally charged topics all good all bad
An illustration of the contrast discussed here; the dots are not the study's measurements.

Putting a pattern into a questionnaire

5.2 Gould, Prentice and Ainslie, 1990s

Gould, Prentice and Ainslie developed the Splitting Index in the 1990s. It asks about extreme views of yourself, your family and other people. In their studies, scores related to measures of self-image stability, self-esteem and personality difficulties. The questionnaire gives researchers a defined set of questions to compare, with the limits of any self-report measure: people can only report what they recognize in themselves.

selffamilyothers
The questionnaire separates views of yourself, family and other people.

Mentalization: keeping another mind in view

5.3 Peter Fonagy and Anthony Bateman

Peter Fonagy and Anthony Bateman developed an approach centered on mentalization: making sense of behavior in terms of what people might be thinking and feeling. That includes your own behavior. It also includes remembering that you can be mistaken about what is happening inside someone else.

Here's what that sounds like from the inside: "She snapped at me. That hurt. Maybe her deadline is getting to her. I don't know yet, and this one moment doesn't tell me everything about us."

Fonagy and Bateman propose that strong emotional arousal can make mentalizing much harder, especially when a close relationship feels threatened. "Maybe she's stressed" gives way to "She meant to hurt me." Someone who was thoughtful on Tuesday can feel certain of the worst during Wednesday's argument. Mentalization-Based Treatment (MBT) helps people notice that shift and recover curiosity about their own mind and the other person's.

emotional arousal mentalizing offline

"She snapped at me. That hurt. Maybe her deadline is getting to her. I don't know yet, and this one moment doesn't tell me everything about us."

DBT: making room for both feelings

5.4 Marsha Linehan

Marsha Linehan's Dialectical Behavior Therapy uses dialectics to help people hold truths that seem to pull in opposite directions. "I'm doing my best and I need to change." "I love you and I'm angry with you." The second feeling doesn't have to erase the first.

DBT combines this practice with skills for managing distress, regulating emotion and handling relationships. During an argument, that can mean recognizing your anger without letting it settle every question about the person you're angry with.

I love you I'm angry at you and

Schema therapy: different states of self

5.5 Jeffrey Young

Jeffrey Young's schema therapy describes modes: states such as a vulnerable child, an angry child, a punitive parent, a detached protector or a healthy adult. Each brings particular feelings and expectations into a relationship. Abrupt shifts between them can resemble movement between Kernberg's units, though the models explain those shifts differently.

healthy adult vulnerable child angry punitive parent detached

What stress may help explain

5.6 A simplified picture of the brain

Stress can make it harder to pause, consider context and regulate a strong reaction. Threat-related responses can become more prominent while functions involving the prefrontal cortex work less effectively. A frightened or exhausted person may settle on "safe or dangerous" and struggle to consider anything more complicated.

A caution about the diagram: its two routes simplify this idea. They are not an established brain map of splitting. People also differ in how readily they enter that state and recover from it.

threat reaction alarm: safe or dangerous? considering the wider picture stress can make pausing harder
6

How it can feel in adult life

In a close relationship

1 2 3 4

Each view can feel convincing while it lasts.

When the relationship feels good, its difficulties may barely register. When it feels bad, memories of being loved may offer little reassurance. Some clinicians use "emotional amnesia" informally for this.

You may remember the lovely weekend you spent together and still be unable to feel any comfort from it during the argument.

During a split, the extreme view can feel like an accurate discovery."Now I can see what they were really like."

How you see yourselfHow groups see each other

When the judgment turns inward

After praise"I'm brilliant. Everything is going to work out."
After a mistake"I'm a fraud. I ruin everything. There's nothing good about me."

"I'm a capable person who made a mistake" becomes difficult to believe. One error can seem to settle the question of who you are.

At work

A new boss seems to understand everything. Then they give you critical feedback, and you start seeing them as incompetent or hostile. A dream job becomes a place with nothing good in it.

The criticism or disappointment may be real. What shifts is how completely it rewrites everything else.

Between groups

A group can keep seeing its own side as entirely decent by placing all the cruelty or dishonesty on the other side. Similar shifts happen when fans idealize an artist and then turn on them completely. Online arguments can reward the simplest, angriest version of a story.

Splitting is a way to examine these patterns in group life. It can't be used to diagnose a crowd.

7

When does it become a problem?

How do you tell a bad day from a problem? An extreme judgment during a terrible day tells you less than a pattern that repeatedly damages your life.

The sliders illustrate dimensions clinicians might consider, without producing a diagnostic score.

More manageableMore disruptive

How often

Mostly during severe stress
Often, even after small upsets

How intense

"I'm really angry with him right now"
"He's awful. He's always been awful."

How long

Perspective returns after the upset
The view persists or keeps reversing

Awareness

"I'm angry; I may be missing something"
The extreme view feels unquestionably true

Effect on life

Little disruption
Repeated disruption to relationships, work or self-worth

Splitting describes a psychological mechanism. By itself it does not establish a diagnosis. It is discussed in several contexts:

Borderline personality disorder (BPD)Patterns of intense, unstable relationships can include shifts between idealization and devaluation. A diagnosis requires a broader clinical assessment.
Narcissistic personality patternsIdealization and devaluation can affect views of others, alongside shifts between an inflated and a painfully diminished sense of self.
Acute stress or traumaA person may temporarily find it much harder to hold a mixed view of themselves or someone else.
Everyday distressHeartbreak, grief, betrayal or political anger can also bring extreme judgments, so what set them off matters when you weigh them.
8

Why the pattern can persist

Why does the pattern stick? Because a painful but certain explanation can bring immediate relief. It tells you who to trust, who to blame and what to expect.

That can feel easier to bear than loving someone you're also furious with, even when the certainty causes trouble later.

What it can relieve now

  • Anxiety.A clear hero and villain can feel easier to understand than someone who both cares for you and disappoints you.
  • Disappointment.Keeping someone entirely good can protect the hope you have invested in them.
  • Shame.Making the other person entirely bad can keep your own mistakes or painful feelings out of view.
  • Uncertainty.Feeling certain about who is right can bring immediate relief.
relief cost

Right now

What becomes harder afterward

  • Staying connected.Ordinary disappointments can repeatedly become reasons to reject the whole relationship.
  • Repairing a rupture.If the other person seems entirely bad, making up may feel pointless or unsafe. Klein's idea of reparation becomes harder to reach.
  • Knowing yourself.Your sense of who you are can change with each extreme view of the relationship.
  • Feeling settled.The repeated shifts can leave everyone involved lonely and exhausted.
9

Learning to keep the fuller picture

You can still be furious with someone and remember why you care about them.

That sounds straightforward when you're calm. During an argument, the hurt can take up so much space that the rest of the relationship becomes hard to feel.

Integration, ambivalence and object constancy describe related aspects of the capacity to keep both experiences available, with a different emphasis in each theory.

What therapy works on

TFPKernbergExamines the different versions of self and other that emerge in the relationship with the therapist.
MBTFonagy and BatemanPractices recovering curiosity about your own mind and someone else's when feelings run high.
DBTLinehanTeaches emotion regulation, distress tolerance and relationship skills alongside holding more than one truth.
SchemaYoungWorks with modes and develops a healthy adult response to the needs and feelings behind them.

A consistent relationship with a therapist can provide repeated experiences of disagreement, disappointment and repair, within clear boundaries.

A therapist can frustrate you and still care about you. You can disagree, return the next week and talk about what happened.

Repeated experiences like that can help anger feel less threatening to the connection. Each therapy approaches this work differently, and the change takes practice.

Things to practice between difficult moments

Listen for absolute words

Words such as "always," "never" and "completely" can be worth pausing over. They are clues to examine, not proof that your feeling is wrong.

Try joining the two truths

Tap a joining word to try "and." Notice whether the whole sentence still makes sense.

  • What he said hurt, he's also been there when I needed him.
  • I made a mistake, I can still do good work.
  • I'm angry with my partner, I still love them.
  • She can be kind she can be hurtful.
Keep a reminder.When you're calm, write down a few specific memories of care or connection. They may be easier to find later if you don't have to reconstruct them while upset. When idealizing someone, remember their limitations too.
Give decisions some time.When it is safe to wait, pause before sending the message, leaving the job or ending the relationship. You can return to the decision when more of the picture is available.
Ask what else could be happening."They seem distant. Could they be tired? What do I actually know?" That uncertainty is part of mentalizing.
Include yourself."I made a mistake, and I'm still a person who can learn from it." The mixed picture applies to you as well.
Check the absolute.If you catch "you never listen," ask whether "I didn't feel heard just now" describes this moment more accurately.
Keep both parts in the sentence."What you said hurt me, and I remember the times you have been there for me." Neither part needs to erase the other.
10

A few things splitting doesn't tell you

"Splitting means split personality."

Dissociative identity disorder is a separate condition. The word "splitting" here describes how someone experiences themselves or other people.

"It's deliberate manipulation."

Splitting is usually understood as an automatic defense. Harmful behavior still has consequences, and understanding the feeling does not remove someone's responsibility for what they do.

"Only people with BPD do it."

Extreme, all-good or all-bad views can occur beyond BPD. Their frequency, intensity and effect on daily life matter more than one moment in isolation.

"It's just being dramatic."

The shift can reflect a real difficulty holding mixed feelings together. The distress deserves attention even when the judgment made in that state is inaccurate.

"You either have it or you don't."

People vary in how often they experience these shifts and how readily they recover perspective. Klein's word position captures her view that people can move between states of mind.

∞

Bringing the two pictures together

  1. Klein described early emotional life in terms of comforting and frightening experiences kept apart. In her model, splitting protects the good relationship from feelings that seem to threaten it.
  2. Klein's depressive position and Mahler's object constancy describe related aspects of developing a fuller relationship: you can care about someone through frustration, absence and anger.
  3. Kernberg applied these ideas to adult personality. He proposed that temperament and difficult early relationships can make integration harder, leaving splitting as a recurring way to manage painful feelings.
  4. Later approaches examine extreme thinking, mentalizing under stress and shifts between states of self. Researchers have developed measures and studied treatments, while working with different explanations of the difficulty.
  5. Change involves remembering more of the relationship when you're upset, tolerating mixed feelings and finding ways to repair what has happened. You can practice the same patience with yourself.

You can be hurt by someone and still remember their care.Holding both makes it easier to decide what happens next.