The phrase gets used as an accusation and as an excuse, and neither is accurate. What it points at is specific: a person who wants relationships, starts them, and finds that something closes at the moment they become real. The closing is not a decision. It arrives as fault-finding, as needing space, as a sudden clarity that this is not right — and it arrives on schedule, at about the same depth, every time.
What is usually going on
Closeness trips an alarm. Avoidant attachment does exactly this: the relationship becomes something you could lose, and the system that learned early that depending on people did not work starts making room. From inside it feels like the relationship developing problems. From outside it looks like a person leaving a good thing because it was good.
You choose people who cannot commit, so you never have to. The long-distance one, the married one, the one who said from the start they did not want anything serious. It looks like bad luck. It is a selection: as long as they cannot commit, the question of whether you can never comes up.
You have not met the right person, and that is actually true. Sometimes it is. The test for the difference is the pattern: if relationships have ended at different points for different reasons with different people, that is life. If they end at the same point regardless of the person, that is you.
You are afraid of the wrong thing. Many people who describe themselves as commitment-phobic are not afraid of commitment; they are afraid of being trapped, or of being fully seen, or of repeating their parents' marriage. Naming the actual fear tends to shrink it, because the actual fear usually has a specific answer.
What to do tonight
- Look at the last three relationships. Write down where each one ended. If it is the same point, the pattern is yours, and it deserves a name rather than a story about each person.
- Stay ninety seconds past the point you would normally end the conversation. That is where the closeness you keep leaving is. It is uncomfortable for exactly ninety seconds.
- Say one true thing to someone you are close to that you would normally have kept. The alarm is loudest before you say it and quietest after.
What it depends on
Whether the pattern is avoidant attachment or a run of wrong people is the whole question, and it is not one you can answer from inside a relationship — the avoidant system is specifically designed not to feel like anything. The attachment test reads it in two minutes. If the avoidance score is high, the commitment issue has a name, a mechanism, and a set of practices that work. If it is low, stop blaming yourself and look at who you have been choosing.