Just namechanged as identifiable, but been here years.
Ex and I live in same area and have a relatively amicable relationship in theory, and muddle along. His GF lives about an hour's drive away.
In the past we've spent time together with the kids on xmas day, for present opening and lunch. Kids like it that way, but I understand if he wouldn't want to see me, but so far it's been fine.
This year I asked about arrangements and he said he'd come over in the morning for presents, then we could have lunch at his. Fine and as expected (I did it last year). I told the kids the plan.
Now he says his GF might be available and if so he won't do the morning but come back from hers in time to do the lunch.
I know some people divide xmas up and the kids have to do one then the other. It's not that I require us all to be together or that I have anything against the GF. It's just dropping his kids for his GF on Xmas day? He will go to hers in the evening anyway, after the lunch with the DC. He doesn't have to be there in the morning.
He's always dropping the DC for her but this has pissed me right off. When I tried to calmly point out that he had said he'd be there in the morning and they were expecting it, he just acted like he was being totally reasonable to change his plan and refused to see my point. Which makes be think maybe IABU.
Just wanted a moan really. 