[chickenugget69]

A few nights ago I was chilling with some of my best friends, amongst them was a couple. As we were going home, the girl said she was going to skytrain home instead of getting in the car (her bf's car) because she only lives 1 station away and it'll be quicker. Then the guy started getting pissed all of a sudden, this is sort of how the conversation went:

guy "why are u acting so wierd?"
girl "how am i acting wierd?"
guy "are u getting in the car or not?"
girl "no i'll just skytrain home, can u open the trunk so i can get my stuff"
guy "WHat the Fuck are u doing??"
girl ".. what?"
guy "ARE U GOING HOME OR NOT?"
girl "YEs.. (starts laughing nervously).."
guy "OKay FUCk you!"
girl "what? look ill facetime u in like five minutes to show im home"
guy "DON't cal me again"

He hasn't really been treating her well the past few months, and I've usually just been a witness and bystander cuz i don't want to get involved in others' relationships. However this is the FIRST time it's been like this (or that i've seen). My friends and his girlfriend, sort of have this theory that he is bipolar or has a split personality disorder. He will be REALLy happy one moment and come Super pissed few seconds later for No apparent reason. Like when he's talking to his mom he will be super happy, then all of a sudden starts yelling in chinese.

Before you guys say they should just break up, they've done this like multiple times but two weeks later they will get back together. It's happened over and over again. usually i don't know who's fault it is but this time i know it's the guy's. I want to talk to him about why he was pissed, but i want to doit in a way that doesn't offend him or look like i'm trying to teach him - because he really REally thinks he's Right.

PS. he might have like a mental disorder. I didn't think so at first but a friend brought it up and it may be possible. He likes to try to make jokes, which are REALLy stupid, not funny at all. He doesn't understand some social cues (like winking to say you're lying - he'll be like "why are u winking at me??"). He gets angry easily and he has a big ego

all help is appreciated - thanks for reading the really long post


short version:
this guy got really pissed with his girlfriend because she wouldnt let him drive her home since she lives one skytrain stop away. he started saying fuck you n stuff and said she should never call him again