I want to leave my bf after he let this girl beat me up
Why did she beat you up?
It happened outside of a club and I got into a fight with this girl. He just watched.
If you can't trust your boyfriend to have your back then you should leave him. He obviously didn't even care enough to break the fight up.
I feel like it's my fault. I should have been stronger against the girl right?
Both your bf and you are at fault. You shouldn't have gotten into a bar fight in the first place. Public places like bar are meant to have fun and socialize with people not fights.