It will sux even worse when she's ten and she understands that mommy could see her at any time and chooses not to. This will probably sound stupid to you, but by moving now she will be better off in so many ways that you are probably not even seeing. Ironically you will probably be salvaging some kind of relationship for her and her mother in the future by putting the distance between them and therefore saving some face for her mother, assuming she eventually wakes up and relizes what a complete bitch she has been. You're buying her mother time and giving her an excuse, but remember it's in Q's best intrest and that's all that really matters. The last thing any child needs is to grow up and feel unwanted by either parent. Trust me on this I've seen it's affects on children and they are everlasting. Moving and letting her have your family to support you and her is the best thing bro beans. She will adjust and having the distance between her and her mother will become the norm, she will understand it as she gets older, but mommy not being there will be because mommy lives far off, not because mommy don;t love me. I know that may seem like you are giving mommy an out and you will be, but it will be the easiest thing for Q.
who are you and what have you done with SB?