You need to take a step back and assess what you do really want in regard to your marriage. Take your emotions out of the equation for a moment.
It is either:
A) Yes, I want to save my marriage B) I have TRIED everything and still want out of the marriage
It seems to me that your jumbled emotions are guiding your decisions when it should be your head making a practical decision.
For these above reasons, it is why we vets all talk about "dropping the rope" constantly here in the forums. You are still hooked on W's wagon that is fishtailing all over the place with you in tow. This is what DBing is all about...dropping the rope and bust on. Not being reactive as you are apparently are at the moment.