Personally, I have no idea why you or any one of us LBSs work so hard to retain what seem to be just awful spouses. In retrospect, if I had to do it all over again, I would walk after the bomb (especially if OP is involved). I think it would have done me and the relationship some good! The result may have been the same, however, the healing process would have been quicker.
I agree with the above. I believe had I been stronger upfront when the A was first discovered, taking a stronger stand with my W I would be in a much better place now.
As for your new approach to Dan, BBJ, this is actually a new 180 for you don't you think? Your past approach over the last 18 months hasn't yielded any significant progress so perhaps this will shake things up a bit and hopefully get Dan to seriously reassess his current course of action.