Dude she sounds like a selfish asshole, She wants you AND the other guy obviously, and if she cant have you both shes gonna throw a fit, you sound like a really nice loving, caring guy and those are hard to find these days and women are constantly looking for that kind of guy, go find one of them and be happy for a change and use your time to make someone else happy. I'm in a similar situation, my gf left me cause she wasnt sure what she wanted and we were together for six months planning to get married, then one of her old friends pops up out of nowhere and decides he loves her so she leaves me to be with him yet she would still call me and talk to me and say she loved me and all that other horse shit, so I said fuck it and told her to never talk to me again and I moved on, yeah I miss her and I love her with all my heart, dont get me wrong, but same applies for me as you, I am a very loving and caring guy and Im gonna find someone who will show the same love and respect to me.