neng, why wouldn't you confront her in front of everyone? Point out her behaviour in front of others, tell her that you deserve to be shown respect, "stop trying to act cool in front of your friends". If you need to go there, call her a **** in front of everyone and let them know what she did. Don't get angry or emotional, be cold and clinical, just state facts. That's probably what I would do cos that's the kind of guy I am. Rather than hide or avoid, thrust your chest out, speak your mind, don't be afraid to offend.