my advice, just completely utterly ignore her. show her she means absolutely nothing to you after what happened, and that you’re not going to waste your time on her. if you be the bigger person and just drop the issue, maybe she’ll see her mistake (not like you’re going to let her back in) and realize what a *insert your own expletive here* she is… and there’s the possibility that other girls will notice this and decide to give you a try 😉