I think you are wrong to antagonizing the situation and should let it be. All it does is make you the same as her. It may sound funny and fun but it's not and you are only furhter aggravating the situation. And don't bother telling me I don't know what it's like to be bullied, I was bullied a LOT in school, and sometimes even beaten up, so I know exactly what it's like. You are in the wrong to try to make it worse and I really wish you would rethink it beacuse as time goes by it will only make things worse and really could cause serious issues someday. You don't really know all that girl has gone through in her life to make her feel so crappy about herself she has to do that to others, so you would be better off feeling sorry for her that she feels so badly about herself, than to try to make it worse. Just think long and hard about what you say and do before you do it, it can have lasting consequences. You know what she's saying is stupid and not true so it shouldn't matter to you what she says. If she physically did anything then sure you could get adults involved and defend yourself, but you are better off being the bigger person than stooping to her level just to get her back. It makes YOU the better person not to do it.