ExH and I split up 6 years ago, we have 2 DC who are at secondary school.
ExH is a high earner - approx £100k to my £20k.
Up until last year ExH paid child maintenance (£500 per month) but that stopped as the kids are with us each 50% of the time. It was agreed that we would each pay half of the costs associated with the children (uniform, school trips, school dinners etc) but it almost always falls to me to either buy these things, or I end up having to ask/remind him to pay for them.
Last year over the year I have just totted it up and I paid £700 for school dinners (!!!), he didn't pay anything.
He has the same school app as me so he can see when their balance is running low, but he seemingly doesn't look at it or ignores the reminders to pay. So I end up paying because I don't want the kids to go without lunch. I sent him a message before the term started to highlight that I paid for all school lunches last year and could he top up their balances, to which I got a shirty reply of "I'm sure I put money in last year" and a promise he would top up. He hasn't. So I have because DS1 has 65p in his account and couldn't buy lunch tomorrow otherwise.
Despite ExH having the kids half the time he still seems to be fucking Disney dad and I end up having to be the responsible one and sort everything out. Part of me wonders if he does it on purpose and likes me having to come to him and ask him for money, but I'm fucking tired of it. I hate asking for money and part of me wishes I could pay it all myself so I don't have to ask, but he earns so much more than me and I can't afford it all now that my monthly child maintenance has stopped.