I can't help you with the OW part, but wanted to say that I am in the opposite position as you. H has noticed and said he appreciates my 180s (though he doesn't call them 180s of course LOL), but is still moving out within a week. I feel like it will be harder to do 180s without him around. It's probably more work with him in the house, but I feel that it also yields bigger returns because it's constant and consistent and noticeable.
Good luck!
me: 44 XH: 42 M 11 years D10 and S8 Bomb drop 9/27/13 D final 7/1/14