@MrsBede YANBU
I’m livid he would take them for the full two weeks. I have never taken them so that he hasn't had them at all in any one holiday and I think it's unacceptable.
Sounds like you have an agreement to having the children for half the holidays each. So, I think it’s fair enough that he be willing to stick with the agreement. It is reasonable if you to expect him to respect the agreement. You have stuck to the agreement, it should go both ways.
It's not a touristy place, there's not a lot there and they don't know his friends
Doesn’t sound like much of a holiday then.
I don't agree. Going abroad is a risky decision in the current situation and I don't think a nrp, especially a flaky one like him, should get the final say in it. I'd be the one helping them catch up with schooling and reassuring ds1 etc, not him.
I agree with you. However, I don’t think the “men deserve the final say without having to take responsibility for the repercussions of their decisions” brigade will agree. And the “women have less value and should put up and shut up” brigade would disagree with you too. If you disagree or complain or get angry as a woman it must be because you’re bitter
Well ,that's total bullshit. Of course it's my business where they go . Especially as I will be dealing with the consequences if they have to isolate.
Exactly, because you are their parent all the time not just when you have the children with you. In Australia a parent can’t take their children abroad without the permission of the other parent. Even a resident parent needs permission from the non resident parent. That’s because both parents are responsible for their kids. How ridiculous that anyone would believe that it’s none of your business what the other parent does with your kids when they are with him. There are some decisions that actually do need both parents involvement.
I have put up with everything over the years and not badmouthed him at all, though he has me and he also refuses to communicate properly, putting ds1 in the middle, which he hates.
No wonder you feel angry. You should be able to have somewhere to vent without armchair psychologists who know absolutely nothing about you diagnosing you as bitter.
And just because you’ve vented your frustrations on an anonymous forum doesn’t mean you are showing your children contempt for their father. Or being angry or bitter towards him in front of them etc.
YANBU and it sounds like you have had to deal with a selfish prick for a while. That can get a bit tiresome after a while. 


Take care of yourself MrsBede. I hope you find some supportive and understanding people you can vent to and let off a little steam.