MDU,

You also might want to book a session at Retrouville in addition to MC. I've heard people swear by it around here.

There's a book that looks promising that you might want to check out and I think it applies to your sitch pretty well.

Kiss Your Fights Good-bye
'Dr. Love's 10 Simple Steps to Cooling Conflict and Rekindling Your Relationship' by Dr. Jamie Turndorf