I suggest that you write down in about 4 paragraphs a brief description of your marital issues, the swinging and how it has affected you, and your feelings about how your H blames you for everything.
Go back through some of your more recent posts if you want - you have already written some good stuff.
Then when you get to the appointment, hand a copy of it to H, a copy to the MC, and then read it aloud while they both read along. Read it calmly and clearly, showing that you are not just irrational. But don't break down or show too much emotion either. In other words, deliver the FACTS of the situation to the MC straigh out of the gate. Don't just let H humm and haww for months worth of talking out the side of his face...get down to business with the MC and get this stuff on the table in writing.
