im sorry abt that whole situation; of i were u i’d just ignore her until she figures that you dont give a damn abt what she has to say or what she will do
trust me it always work; when they figure you’re not bothered with it they will stop bc it will seem pointless to them
i think you should just forget abt it and move on; if she continues to act like that then i think you should stop trying to get her back as even a friend
i dunno why i said it, you dont have to listen to some 15-yo teenager but oh well
i hope i could help 