So me and DH are having the most stinking of arguments and 24hrs later I’m no longer convinced that I’m as right as I thought I was 
Background is that we have been together for 4 years, I have 3 children and we alternate Christmas with their dad (very good terms) he has 2 children who are 19 and 17.
The 19 year old lives with us full time, the 17 year old lives with her mum.
For clarity I have not had any contact with the 17 year old since we got together, she has always refused to have any type of contact with me (the reason the older child lives with us is because he does have contact with me, therefore he is not welcome in her mums house).
For clarity I was not the OW and divorce proceedings were in place before we got together.
So every Christmas DH goes to his ex wife’s house to open presents and is gone for a couple of hours.
Then on Boxing Day he goes off to his mums with his kids till about 3pm.
This year I’ve said enough is enough - they are adults, one of them lives with us FFS. It’s ridiculous.
His compromise was to suggest that he takes the 17yo to his mums and then drops her home on Boxing Day and picks me up 
and it’s then my turn. (Yipee!)
My compromise was to book a lodge in a lovely camp site for me and the dog to go on Christmas afternoon and I will come back on the 28th as my kids come home 
He is Absolutley raging. We have had tears and how could you leave me at Christmas (hold on a minute Sherlock, you have done this to me for 4 bloody years!)
And now we are at a standstill, he will not consider anything other than watching his children open their presents (bearing in mind that one child will be waking up there Christmas morning and being drove to his mums to open the presents but will discuss Boxing Day.
I’ve had absolutely enough of my actions being dictated too my a 17yo who quite frankly only appears to have an issue when she wants something and whilst I was tolerant of the situation when she was younger think that it is now ludicrous.
So AIBU?