Liz - I'd been wondering how you are. I am glad to know you're OK, even though I am sad for you with the nature of the update. That's awesome that you've been able to have such a helpful IC. It sounds like there is stuff going on with that that is bigger than your M, although it affects it.
Is your H in IC? It sounds like he has a lot of work to do, too.
I don't have any advice/suggestions other than interacting with him less. Give him space to figure out what side of the fence he is on. I know that is markedly easier said than done, and that GAL is tougher than normal.