I'm sorry you're going through this, Rion. I am in the same boat; my H moved out a month ago because he needs space. It is difficult but I have been amazed by my own strength and patience during this process. I'll be rooting for you!
I agree with Fartiltre that you should NOT move out, at least not before you talk to an attorney. There could be adverse consequences to moving out in the event of D, so you want to know what you're getting into.
