I'm in danger of being accused of drip feeding because there's so much back story, but I don't want to overwhelm you with information. One thing that's probably relevant though is that last month one of the kids had an operation, he not only didn't want to be there for dd, but wouldn't help look after the other dc's, instead going away on a holiday with his girlfriend- a trip which wasn't booked until AFTER he'd said he had something else to do so couldn't. He is also either not paying maintenance properly or not paying it at all depending on whether he can be bothered on any particular month.
I'm fuming because my stbxh has suddenly decided that he can't have the kids for one of the two weeks that had been agreed during the summer holidays. He can't get it off work because he has booked time off for other things... Things not involving his children... And therefore hasn't got enough leave.
I'm annoyed because the kids will be upset, he's clearly not putting them first and I've already got things booked. He's expecting me to just pick up the slack and have them, cancel all my plans, lose money on it... AIBU to think that actually, either he should cancel other things to make that week available or he should sort some form of childcare out like any other working parent would do?
I'm hoping of course that I'm NBU, but I'm fully prepared to be told if I'm wrong, please explain why if I am though. It just seems to me, that despite going to great pains to say he would always put the kids first, he's actually doing the exact opposite, but perhaps I'm seeing it wrong.