Mtnman, I've been reading your sitch and the latest with your W. I find in my sitch, that when I think I screwed up and said something that is a major backslide, ... well it is as if it didn't happen the next day. My W ignores it.
I suggest you let 2-3 days pass, without communicating with your W and think through the sitch. Maybe a change of boundaries? less communication or going dim? Whatever suits you and your sitch. But I think waiting and thinking through is important.
For example, in my sitch, I'm becoming impatient, yet I think about my sitch and say to myself that a divorce would be as painful now and take at least 2-3 years before I was fully on my feet again. Can I put up with the W's MLC for another 1-2 years instead? Sometimes I worry that it will never end ...