Man I feel for you! You mentioned God there, and I think if you have any type of church you attend then it may be a good time to seek some personal help, and pray as well. I'm not a big church person, but I do think I'm pretty spirtual and the praying I think is saving my sanity.
Don't make any rash decisions. Once the W leaves she will have that space, give it to her. It starts her thinking and clarity process and she will start thinking about you. Stand for yourself and go to a game with the guys or some other activities you and your friends enjoy.
I think you have handled things well and should be proud of yourself. Remember you control you.