FOBD, I wish I was a better example of what I am about to preach, but I think your feelings of bailing the water is due to focusing on what you cannot control. You cannot control what your W does. All of this may not save your M. BUT, if you focus on what you can control, you will right the ship. You will be a better person.
Hang in there man.
BITS
Happiness is not something ready made. It comes from your own actions.