Background info; I work 10mins from home, 3hrs, 3 days a wk in the evenings. When I was still with my ex, he used to care for the children while I was at work. When we split he offered to still do this but he now keeps them up late to play with them, has also woken them up to play when they have been asleep before he arrives. He is rude to me and removes anything he wants from the house while I'm out. He has also complained lots about the massive favour he is doing me.
I have told him I have sorted something else out now, so he doesn't need to come over. He wanted to know who was babysitting (they are his children too), so I told him. My older son (15 in March) is babysitting my little 2, (who are 2 in Feb and 4 in March), with my neighbour (who knows me and my children well) 'on call' if he needs any help. The little children are in bed when I leave, but sometimes haven't fallen asleep.
My ex says this is unacceptable and I need to make other arrangements. How much of a say does he have in this legally. He has been VERY difficult about everything he can since we split and isn't willing to pay anything towards childcare costs