do some research boy

Please do some revision before u asking girl go out dating for the 1st time
- she like u or not
- check whether she single or not
- she already has a boyfriend or not

If not, it will be like this :-
man : why u call my ***?
u : who are u?
man : who are u? why u call my girlfriend?
u : u is *** boyfriend? haha...
man : ya! u think this funny? u think this ******* funny man?
         why u ******* call my girlfriend? bla bla bla



p/s : haha seriously this is funny. Man, u should chill bro... He didn't know your girlfriend is not single.