The background: I have left exP when DS was 4 (he's 8 now). ExP was emotionally and, on few occassions, physically abusive.
However, he does love DS very much and so we decided to do the 50/50 in terms of looking after DS- week with me, week with him. We live only a mile apart and, after a first year, where ex was being an arsehole whenever he saw me, it has been working out well- we managed to have a civilised, if somewhat cold relationship.
But: ex often asks me to look after DS for a day or two or to pick him up from school etc when it's his week. He works as a freelancer, so fair enough, it's difficult to always predict his next job etc. I've never refused, although his attitude of expecting that I will do it as opposed asking me nicely has always annoyed me a bit.
So, now he's saying that he's working next week, on Thursday, so I'll have to have DS. I say, well, let me see what I have planned for that day. He says (in a nasty tone of voice): 'What, are you working? Oh, wait, you don't work, do you? So what can be so important that you can't look after your own son?". I said that it's not really his business and that I'll get back to him re Thursday. He said few more 'lovely things' and hung up on me.
So, AIBU to not look after DS next Thursday? It's true I haven't worked since DD was born (am going back in October, most probably), but that is not the point.
I'm fed up with him just 'telling' me when it's not convienient for him to look after DS, and also, since he is working, that surely he can sort out a babysitter?