In been with this girl for a couple months now and it was cool for a bit but I noticed I had to change too many things about myself to make her happy so I broke it off. The week after break up she was sending me all these text about how she was falling in love with me and can't be without me and things like that for like 6 days straight and promised I wouldn't have to change so much of myself to be with her, so I took her back.

But since we got back she's been texting this one guy a lot and he even called her at like 3 in the morning to hangout and I find out that while we were apart she tried to move on with this guy, and they hung out, so I read their texts (major invasion I know) and I find out that they've been telling each other how much they like each other, and things like that, and she hasn't even told him we were back together 4 days after the fact, she talks to him every day, she even hangout with him again yesterday behind my back and I don't know what to do about this, she said she was falling in love with me when we got back together, she even gave up trying to get me from selling merchandise to some girl (which she had been doing for weeks) because I told her if I did she couldn't talk to him no more... some nice advise would be appreciated

If you have any additional questions to help you give better advise feel free to ask

Really the only advice here is that you should just end it with her. She's playing you. She's keeping the safety net of having you around in case it doesn't work out with him. If it does, you'll be left behind. Why not be the one that ends it on your terms instead of subjecting yourself to dealing with her? You can find someone better, just believe in yourself a little. You ended it once so find the strength to save yourself and do it again.

Also... I think you may realize this now but... NEVER change yourself to meet someone's expectations. If she started going out with you as you were, there is no need to change who you are. If you find yourself having to do that, the person is not worth it.

Good luck.

You have been with her two months and broke up once, so you have been dating less than 8 or 9 weeks. So she wants to also date someone else, what is the promise made, at 8 week, couples should not be so committed and open to see others.