TH, this is a really good post. I feel like I'm picking up on what looked like "The Dance" - does this sound familiar?
Your H starts to feel an uncomfortable emotion... .
"I noticed the mood come over him last night"
He's not exactly sure what to do about it, but he knows in the past you've been able to help him deal with his emotions... .
"He has started waking me up at night"
"he just asks me a question, like "what time is it?""
You're not getting it. H feels something. He needs to get it out. There needs to be a fight, and you're not playing along, so... .
" he made a big huge exaggerated response by covering his nose "
" he says "Oh. I guess we aren't leaving at the same time.""
And then, finally, you bite... .
"I said, "Would you like to leave at the same time?""
Ahhh, good, you took the bait, he says, but for now he's decided to play it cool... .
"He just responded with something about not being ready"
Now, intuitively, you start to realize this is the dance but it's playing out more slowly than maybe it has in the past:
"I think if he were outright dysregulating about one particular thing I could deal with it"
The full blown dysregulation is quick, to the point, and gets the emotions settled quickly. But you've been doing a lot of work and you're not as quick to jump into that boat. He senses the change, so he's got to up his game to get the fight he's looking for.
So he goes for broke, in a situation he knows will get maximum response and max impact:
"My H was ramped up and ranting"
"he announced that he isn’t going to eat"
"So he grumbled and complained. "
You're horrified... .
"I am so uncomfortable when social norms are broken."
And he likely knew you'd be paying more attention and that this was a button of yours. It could also have been that the upcoming dinner was the thing that started this emotional difficulty for him in the first place.
The only thing I wanted to point out, though, was I thought I saw a dance here and so I wanted to ask if this resonated with you?