Is this tight or too cruel? Or is it just me? WWYD now?

[Teabay]

Unbelievable thing happened yesterday.
I divorced an abusive wanker nearly three years ago. DC 8 and 12. I had to leave the home, he got it cheap from me to just to be safe.
He wouldn't pay to support them, so I reported him to CMS. He was furious, and still is.
I pay for EVERYTHING his £5 per day doesn't cover.
This weekend (they go EOW) it was a club for the youngest. I pay in advance for the term, and we each take them on our week. By mistake (paying online) I only paid for the first week, not the term. He took the DC, got there, it wasn't paid for and so instead of paying £14 and asking me for it back / taking it off the maintenance, he PUT DC BACK IN THE CAR AND BROUGHT THEM HOME!! After they'd seen all their friends there - they were already inside the place, FFS.

Is it me? I couldn't do this with my DC's friends, even - I'd just lend the money. Or even pay!

They're his DC, we were together 16 years. Any advice what I should do now?? I can't believe the meanness!

There's a reason he's an ExH...

Did your kids definitely want to go? Could he have offered them something else to do instead and they all decided not to bother?

Might he have thought you were playing games by not paying? Obviously he’s still amtight git but just trying to think how he might be thinking.

Does he not approve of the activity? Might it be a stance against taking them somewhere you’ve decided they should go rather than him being able to chose how to spend time with them. Again, I realise he’s still an idiot but just trying to think why he did it.

Thank you everyone - you've reassured me that I'm not off kilter - it WAS a ridiculous thing to do.
I've not said anything to him, as there's no point and he's possibly waiting for me to contact him about it do he can have a row. He can wait.
I DID say to the DC that I was astounded, it was a really mean thing to do and I thought he had been a mean git about it, and then I've left it. I'm not going to just carry on defending him, or they'll start to think that THEY are feeling things they shouldn't.
I said to them that if they felt sad they couldn't go, that's ok. Everyone would feel sad, I would feel sad. And that their dad could've done XYZ, but he chose not to. And that's why we don't live together anymore.
Already the eldest is understanding it. I make them go (sometimes in tears) EOW, but I supported them and stopped the mid week tea and random Sundays when HE said it was "getting in the way of doing things"....THE DC ARE YOUR THINGS, FFS!

There, I feel better now

Had similar recently regarding new School shoes. Asked him to get them fitted as he was in town with the children (he has them EOW) and after a lot of back and forth I advised that I would reimburse the money and that I had temporarily sorted eldest child.

He emailed immediately after purchasing shoes "eldest child's new shoes cost X. Reimburse." So I asked "what about youngest child?"

He responded two hours later saying he had exchanged eldest child's new pair for a new pair for youngest child.

Utter dick. Eldest child was very upset when he was brought home.

I can cope with him being a complete loser towards me, but when he's mean to the kids it makes me really really see red. I've said nothing. Just banked it.

Hope the kids are ok OP.

I'm glad we helped OP.

@ScoobyCan - how awful. I can't believe how low people can go.