[Eternal]

From a Buddhist perspective, holding onto anger just ends up hurting you rather than the other person. It's clear she is disrespectful and you don't care for her, so don't give her any satisfaction. She's not worth getting suspended for. I know it's hard, but really try and just ignore her. Fighting her won't solve any of your problems, it will only make new ones. Be the bigger person here, be more mature then her. Honestly if you physically harm her, I think that's a lot lower than her calling you names.