Nervous System Stories: People Leave

One of the stories I see most often in my work is the story that people leave.

Most people don't walk into therapy saying, "I have a nervous system story that people leave."

Instead, it shows up in the struggles they're having.

They find themselves constantly worried about relationships.

They overanalyze text messages.

They notice subtle shifts in someone's tone.

They feel disproportionately hurt when plans change.

They need reassurance, but even when they receive it, the relief doesn't seem to last very long.

Or sometimes it shows up in the opposite way.

People keep others at arm's length. They avoid depending on anyone. They convince themselves they don't really need relationships. They leave before they can be left.

On the surface, these patterns can look very different. Underneath them, I often find the same fear.

What if people leave?

Most of these individuals can identify experiences that make this story understandable.

Maybe a parent was physically absent.

Maybe they were emotionally unavailable.

Maybe relationships felt unpredictable. Sometimes people were present and engaged. Other times they were distracted, overwhelmed, struggling with their own issues, or simply gone.

As children, we don't usually have the ability to understand all the reasons adults behave the way they do. We don't think, "My caregiver is emotionally unavailable because they are struggling with depression." We don't think, "My parent loves me but lacks the skills to express it consistently."

Instead, our nervous systems begin noticing patterns.

People are here.

Then they're not.

People say they care.

Then they disappear.

People feel close.

Then they pull away.

Over time, the nervous system starts organizing around what it has repeatedly experienced.

People leave.

The interesting thing is that this doesn't stay a thought.

It becomes an expectation.

Research in attachment, neurobiology, and learning theory suggests that our brains become increasingly efficient at predicting outcomes that have occurred repeatedly in the past. The brain is constantly looking for patterns and using those patterns to anticipate what might happen next.

This is incredibly adaptive.

The problem is that the brain isn't just learning facts. It is learning expectations.

If enough experiences point toward disconnection, the nervous system begins anticipating disconnection.

Not because it wants to.

Because it is trying to protect us.

I've often explained it to clients this way: once your nervous system develops a hypothesis, it starts looking for evidence.

A delayed text becomes evidence.

Someone needing space becomes evidence.

A friend seeming distracted becomes evidence.

A partner having a bad day becomes evidence.

The story quietly starts shaping what we notice, how we interpret situations, and how we respond.

Sometimes people respond by holding on tighter.

They seek reassurance. They monitor the relationship. They become hyperattuned to signs that something is wrong.

Sometimes people respond by pulling away.

They stop reaching out. They become guarded. They decide they don't need anyone anyway.

Neither response is irrational.

Both are attempts to solve the same problem.

The tragedy is that these solutions can sometimes create the very outcomes people fear.

When we hold on too tightly, relationships can become strained.

When we push people away, distance naturally develops.

The nervous system then points to the outcome and says, "See? I was right."

And the story becomes even stronger.

One of the things I appreciate about DBT is that it helps people begin noticing these cycles without immediately acting on them.

Mindfulness helps us observe the story rather than automatically obey it.

Emotion regulation helps us tolerate the fear that gets activated when relationships feel uncertain.

Interpersonal effectiveness helps us ask for what we need in ways that build connection rather than unintentionally undermine it.

Trauma work often goes a step further.

Rather than simply teaching new skills, trauma therapy helps us revisit and process the experiences that taught the nervous system this story in the first place. As those experiences become integrated, the nervous system often becomes less reactive to reminders of abandonment and loss.

The goal isn't to convince ourselves that nobody will ever leave.

People do leave.

Relationships end.

Loss is part of life.

The goal is to develop enough security that every moment of distance no longer feels like abandonment.

To recognize when an old story is influencing how we see a current situation.

To become curious about the story instead of immediately believing it.

And sometimes, to discover that what feels like a certainty is actually a prediction your nervous system learned a long time ago.