The new gf did break up with my gf. As far as I am concerned that is the end of this. I am not willing to go through this again. I don't think I am suited for poly and I hope that my gf and I are able to make a mono relationship work. I feel confidant that we can, she just has to come to it without resentment of the fact that the new gf left over a demand that she didn't like.