To not want to do joint presents with ex

[Ntsure]

Me and kids dad broke up over 5 year ago.
he always assumes birthday/Christmas gifts for the children are going to be a joint effort but I think that's quite odd?
by joint effort I mean it's me planning what to get and buying them and then him asking what "we've" got them and giving me half the money.
I just want to be able to do my own thing regarding their gifts and I've tried saying before but he gets annoyed and says I'm being difficult.

THIS

Yes, I would double the “half” cost and buy extra gifts for DC.

You're being used and he is getting away with it.

This is perfect 😂😂😂

The gifts are £50,000 this year. Pay up.

My ex just gives me money and I get everything, and just say they are from both of us, but it's slightly different because he doesn't have a home so DD is always with me really. I don't really care either way.

He can complain all he likes, you're not his PA.