Oh, and as for H not wanting to leave, what he told MIL is that nothing will change short term with us, we've been "just friends" living together and that will continue.
If that's true, though, why is he so hurt and trying to hurt me back by sleeping on the couch? This is something I've been toying with for a bit now.
Well, first off, he's LYING to his mother, he's been sleeping with you... FRIENDS do NOT do that. Ya, he's on the couch now... big deal.. he's just pouting and trying to hurt you.
I would just not make a big deal about it... he's using the couch to make you squirm... and you are letting him.