Woohoo, after 50+ pages of lurking I finally have something decent to contribute :3 Anyways, first I'd like to let you know one thing: watch out. I went through something very similar this past summer. Basically there was this girl I liked that was very flirtatious and I would often become jealous when she would flirt with other guys. I let her know this but it didn't seem to make her flirt any less. It seems you're going through the same thing. You're jealous, there's not much you can do about it but try and control it the best you can. She's flirtatious, there's not much you can do about it and you need to accept that it's just who she is. Chances are she doesn't realize it when she's doing it, or worse, she does. If you're lucky it's just part of her personality and that's it. If not, she may be like the girl I took interest in. The girl I liked never really had very many boys that liked her before me, so I was kind of a new experience for her. Once she realized how jealous of a person I was she decided to take advantage of me. She would often flirt with other guys whenever I was around, just to mess with me. Apparently she liked watching how I reacted when my emotions were getting the best of me, which is why she did it. Eventually we got into a lot of arguments and stopped talking for a few months. It seems to me like that's what your girlfriend's doing - she's saying these things on purpose just to mess with you. I really hope I'm wrong on this. Tl;dr - learn to control your jealousy, it can be a real [bleep]. Also your girlfriend might be playing mind games with you so be careful.