Well, today is dinner-with-dad Thursday. I got a call from XH at lunchtime asking if he can take the kids out for dinner.
He then says he wants to take them on his own.
OK, I say, happy as a clam.
I think maybe your reply implied that you would make sure the kids were ready to go when he got there, which clearly wasn't the case. Perhaps it would have been a good idea to tell him that you were fine with it, but he needed to coordinate it with the kids himself.
I know he's "crazy" in an MLC way and that has got to be tremendously difficult to deal with for you, but keep in mind 25's mantra about keeping the way home "paved and smooth". When he showed up he was met with resistance and negativity from all 3 of you. It could be argued that he deserved it, but DB'ing isn't about getting even, it's about showing the WAS what they're missing. In this particular instance he had to walk away thinking he wasn't missing much.