Just FYI, there is a whole subforum for walk-away spouses:
I think that forum is so far down on the page that it's forgotten about. I'm not sure, but I think I was about the only one who posted to him, and I didn't want him to get so discouraged he'd leave.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!