Hmmmm...alot of great signs. I would experiment with "mystery" more. What if you didn't answer the phone when he called? Don't accept all of his invites to go out to eat.
As far as ML, if you are comfortable doing that than continue. I think Michelle would agree. If you ever feel uncomfortable with it, turn the offer down and see what happens.
Wiley gave me alot of great suggestions on "giving up." Maybe give your H more of the illustion that you are moving on with or without him, it really doesn't matter.
