I do not know of a single case where a WAS situation has been resolved through MC. More frequently it makes things worse. I would quit pushing her into it for now. Save it for the piecing phase.
I just wanted to clarify that I'm talking about conventional MC, not DB coaching which I consider to be completely different. Conventional MC never seems to work with a WAS situation, but of course DB coaching is very valuable because it's based on DB principals rather than the school-taught anti-marriage philosophy that's so prevalent in today's society, even in counseling circles.