Personally, I think you are doing very, very well.
I don't believe in your husband's new relationship for a minute. I doubt it lasts 6 months. Already from what you've said he's risking her wrath by having so much contact with you.
It seems to me that what you're doing is working and I'd keep it up. His scanning weather reports and worrying about you is very good. I think you know OW would freak if she knew he was doing that.
I wouldn't worry too much about his inconsistencies. Comes with the territory in my view. Sharing his 'excitement' about his new relationship, oblivious to it's effect on you and even expecting you to be happy for him, is all part of the wacky chemical soup they have going on.
I'd maintain your friendship if you can but most important by far, keep developing your independence. The kind of dependency you developed with your H can be a very heavy burden for some men to carry and can be a sexual turn off.
I'm very optimistic for you if you stay on your current path and focus on yourself and not your H's current hare brained state.
