You did the right thing from that story. Maybe entertained him for too long, but whatever.
1. Yeah he's an idiot and probably wanted to take it to level 100 just because. Especially if he thinks you were solo since you left your boys in the other section and he's there with his guys.
2. I doubt it was his girl, but he and them nikkas was probably trying to build up courage to "make their move" and didn't want extra comp getting in the way
3. He might have failed at number 2 and was probably salty that another nikka might get in.
I've been asked before if someone that happened to be standing next to me was my girl and you just get a "go ahead" hand sign....I don't remember seeing that devolve into the fukkery described, but dumb nikkas do dumb shyt
It's better to ask, because the "nikka don't you see me right here" will always be more volatile if it IS his girl