Lass, What about instituting another schedule? The Sunday night thing seemed to be working very well for a while, didn't it?
I would be very clear in the MC's office about your need for specifics. Him agreeing to ML 3x per week is no longer enough. I would request a more specific assignment, in light of his refusal to cooperate. Something like: ML on Tues, Fri and Sun. Or, give your wife a french kiss upon returning home from work. Not "incorporate more real kisses into your day".
This is not bashing your H either. We are ALL like this. Give me an assignment in which I am supposed to change a long term bad habit of mine and if you give me so much as a millimeter of screwing around room, I will probably procrastinate and not do it. Schedules are great things for breaking habits and, furthermore, I think you need something more concrete so that your mind is not waiting, wondering, every single day. That's called torture, eh.