Don't move out, continue PMA and DB'ing. You can say "This is not what I want, but I will not stand in your way if you feel it is what you need to do" (regarding divorce)
In her head, when she filed for D, she probably thought that would resolve all the feelings she has been having, for you are the cause of everything. it didn't so now she is on the next step...if you move, that will make her happy. It won't.
She just does not realize it yet. Stay your course, I know it's not easy. Get out, do things etc. GAL
