Ineffable Ontological Detanglement .: Introspective Assistance & Mental Analysis Manual
Generally this behaviour does not become you and stay with you into adulthood. If you manage to fully maintain this until adulthood chances are you will not survive long.
You find a new person, you pester and pester and pester and pester because you know this person isn't going to like your personality they'll find it annoying so you put it in face put it in face put it in face. You find the things people dislike about you and put them in face put them in face put them in face put them in face.
If you really need the "Why did I do that?" To prove you don't care, you still think you're really incredible, everything outside self can't hurt self. You will not be INTIMIDATED, you are the one who is intimidating. Self-directed aversive arousal, you're not supposed to follow through with those they destroy you.
Obviously this is an ego invested malfunction of a child. The child does run the risk of hard compartmentalizing themselves into an underlying this into adulthood. It's an especially popular thing to do in America. While you have not fully maintained this, in a lot of ways you have become this, you have matured this. If you think this is how you prove it, this is how you prove yourself, you're finished, there goes your life. You may not know you've done this but a lot of you have done this, you forget all about the fact that this is what you're doing, you're running a semi-conscious system of self isolation and you don't get why people don't like you you're a normal guy everything about you is normal you behave normal your interaction is normal, you don't get it.