It's quite a long story so I will try and keep it short. Basically my mother doesn't like my DH and his family and never has. She is rude to DH, rude to DSS(15) and rude to my FIL. It's been going for years but finally came to head over the weekend with something she said to my FIL and I am refusing to engage with her until she apologises him.
DSS(15) and my DS1(15) had planned to spend last Sunday night at my FIL's house and this had been arranged for weeks. My mum rang last week and said she would be coming to visit on the Sunday and i told her DS1 wouldn't be there as he would be at FIL's house for the day and the night and she was totally fine about it over the phone.
Anyway on Sunday morning she turn up just as FIL did to pick the boys up and she was in such a mood about it saying things like she hardly ever sees her grandson (her choice btw) and could he not even be bothered to spend a day with her. Anyway just as the were leaving she said to FIL something along the lines of 'I don't know why you want to take my grandson, he isn't even related to you. I find it really strange you want to spend the night with a random teenager' which was followed by 'are you some sort of pervert or something'!
This was in front of DH, FIL, both the older boys, DS2(4) and DS3(2). I think she was completely out of order. FIL does loads for her grandson and they have a really nice relationship and the poor man was really upset about the whole thing and i personally thing he deserves an apology.
Anyway my sister rang up today to shout at me and say i was being really unreasonable, really unfair on mum and that she agreed the FIL was 'a bit weird' to want to spend time with someone who isn't his biological grandson.
So AIBU? I really don't think I am tbh but would appreciate others opinions.