Even if it was a cover, it can lead to progress. I would guess that many people would love to get an easy agreement for MC because they're stuck with a W/H that says I don't even care to try. If she really hated you and like it that way, why would she agree?
Some things to consider with your first MC: - make sure your goal to save your marriage is her/his goal - ask how they will ensure it doesn't become an attack on her (or you) because then it may only make problems worse - ask what you are expected to do if you (or she) get too emotional or angry - ask if things said in MC can be ever used in court - show by action your best listening skills to your W; convince her that you are really trying to make BOTH of you happier - be willing to change any decision (ie quiting job) - if you start feeling the MC is saying, "wow, your M is screwed", get a new MC
I remember someone saying that they went home complaining about their MC session, but once at home, they felt desire which led to sex. Go figure...