I'm new wondering if this works...

[Energizer Bunny]

...I"m feeling strong anyhow.

Good for you!

I think that you're going about this the right way. Take the good, stay somewhat detached and be strong.

Hopefully the new part you got won't be all consuming. I know that the theater was something that H felt took priority over your M in the past so there will be a tendency for him to see you doing this and think “see, nothing has changed.” There’s no reason that there can’t be a better balance though.
It sounds like you’re in a good place right now.

He agreed to MC Thursday? This is great! There is of course the chance that he will go just to say he did and justify himself for leaving, but your H doesn’t seem like he’s the type that feels he needs to justify himself.