Fixer, I am sorry that this is happening to you. But, I do have one question, why are you moving out? If she's the one that isn't happy, maybe she should be the one move out. If you move out, it could look like abandonment of your family and home.
Before moving out, speak to a lawyer to make sure that this will not harm you financially or look bad in the eyes of the law.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.