Should I try to get a free drink off the bartender because she gave my friend one?
Do you guys know this bartender?
Not at all she hates my friend and I'm going to give her a hard time about it
You should not try to get free drinks from a bartender. It is also not really your business if they gave one to someone else.
I'm going to find a way to get that drink
Your friend was probably owed something by the bartender and they offered them a drink as repayment. You should just pay up for your drink if you really want one, instead of bothering the busy bartender.