I am with other posters about finding a different MC that focuses on solution-based therapy. A good and efficient MC will aid you two in looking at the hows and whys of the A which was a symptom of the M itself.
The really good ones just don't let you two to "rehash" things from the past, but rather look at them from a different set of lens so you and H can recognize the patterns as a way to change them as to allow you two to become a stronger and unified team.
At least, I would strongly suggest that you and H go to Retrouaville. I've heard many posters swear by it and many have come out from the experience much stronger for it.
