Punkin, I'm a very competative person, so maybe it would help to look at it like this, for all the dealings/happenings with her in the future :Tell yourself this :
I'll be the one that wins hands down when it comes to keeping my integrity and grace intact.There is NOTHING more attractive in a woman than her ability to keep herself above anyone trying to make her react negativly.
A womans gracefulness in dealing with nasty situations or nasty people is one of the things men find MOST attractive - I read that somewhere - never forgot it.
So just keep remembering that. If she tries to get a negative reaction out of you , its ALREADY put her in the dis-graceful catagory, so you are already one up! Dont let her put you in the same catagory, youve already won - even when you dont react at all. She can try all she wants , but she can't take that away from you. Your Grace and elegance will win hands down.