“Why do I push people away when they get close?”

What could be going on

Goes cold after closeness: Going cold after closeness fits; check whether it follows a particularly intimate moment.

Dismissive-avoidant attachment: Valuing self-reliance and keeping distance fits; check whether needing someone feels weak.

Fearful-avoidant attachment: Wanting closeness and fearing it fits; check whether you pull in then push away.

Deactivating strategies: Fits if you find faults or get busy to turn closeness down.

Defectiveness/shame schema: If closeness risks being seen as flawed, distance protects; check fear of being found out.

Introversion and extraversion (Jung's original sense): Could partly be an introvert's need for space; check whether you return once recharged.

Also said as

• I go cold when someone likes me
• I ghost people once it gets serious
• my boyfriend pulls away whenever we get close
• intimacy freaks me out
• I lose interest once they're into me
• I sabotage relationships when they get serious