Impatient, I'm not sure what you describe is a backslide, but a revelation of where your H and M are currently at.
I'd like to hear more about the R talks you had in July, and what your GAL and 180 efforts were. I'm glad you read DR, because your DB efforts are just starting.
MC is worth a try. It will reveal his level of commitment to working on issues. It could certainly benefit you having a therapist to talk to. It will help to hear an outside perspective on where they think the M stands.
It sounds like your H is ambivalent about the M. That's OK. It still gives you something to work with. He's not on a fast track to D, so there is still time to turn things around.
CL
CL 53 W 54 M 20 yrs. 03'-09' Separation + Old Patterns + GAL 10-14' Piecing
"The Master allows things to happen. She shapes events as they come."