19 month old daughter, her father and I split when she was about 2 months old. Don't trust him to look after her alone so I stopped leaving her with him to even pop to the shops on my own, so I haven't been out without my daughter or had anyone to babysit my daughter for over a year. My ex and I have an arrangement where he sees my daughter twice in the week and all day Saturday. My friend casually messaged me today about me possibly going out and said she would look after the baby for me. I then casually mention this to ex in conversation. He doesn't like my friend and she doesn't like him. He got his hair off saying that he should be the first port of call if I wanted anyone to babysit. I told him although I wasn't going to take her up on her offer, that I disagreed with him as we have set days, If I needed or wanted a babysitter to look after my daughter for some reason then I should be able to choose someone to do this. He absolutely disagrees and basically told me that I shouldn't be able to get anyone else to babysit and that it must be him if I ever do need a babysitter. In my mind as a single parent, if I needed a babysitter outside of the days he sees her, then it's up to me to arrange suitable care. I can see it from his point of view also but not sure who is being unreasonable here?