I agree with Job. Christmas Day is a done deal and it sounds like you are comfortable with this ONE day arrangement. He is seeing all the other activities he will miss and he is counting on you to make this easier. I like how he sorta tried to weasel his way into the other stuff...and, Kudos to him for working hard to make it seem very low-key and even turn it around so HE feels like HE is making the decision on what activities he joins!
Like... "Yep. I don't want left out of ALL the fun stuff. Count me in on these, specific activities."
Very immature, but very adept at how he sorta eased into the whole thing. Spectacular manipulative move. Bold. Ballsy.
Thing is... You got this MLeigh. If this man never shows up to another holiday event, you will still be okay. You have the makings of a life without him. You have worked so hard to create this life on your own and have done it respectfully.
Even your son has made peace with his Dad living on Mars. I suspect your H is sensing this. He sees you able to function and even thrive without him.
Now, he needs to SEE it without participating and watch you thrive from afar. Don't let him hook you. These are his choices.
He is a master cake eater.
"You know, it's times like these when I realize what a superhero I am." Tony Stark/Iron Man
“Focus on what you can do, then do it with all your heart.” Lois Wilson