Okay, I know what bangs are. They don't like your bangs? That's even more superficial--hair grows and can be cut. It's not like it's something that nothing can be done about.

I'm wondering about these people's self-esteem. Folks who put down other people are often times trying to build themselves up.

My suggestion: Try not to let them see you sweat--i.e., pay them no attention. I know it's not easy, but if they see they aren't getting to you, then they will likely give up at some point. Be glad they aren't your friends. Who wants petty friends like them?