How to deal with someone who wont leave you alone?

Unless you're a quick thinker, being mean back might not work so well. Telling might make you look really wimpy but it might help. Fighting won't help unless you know for sure you would win and you wouldn't get in trouble. I suggest acting like it doesn't hurt you and if that doesn't work then try thinking of some bad things you could say to her. Also having someone back you up will help alot