OK my kids used to spend a week in the summer with my dad his wife and their 'own children'. Last time they went my DS 'fraped' my eldest half bro who is vulnerable and sensitive. My eldest half sister who has not spoken to me for years came around and shouted that he was 'an autistic cunt just like his mother', in front of my dd, who was upset and started crying. Then a couple of days later half sis invited dd to her house to make a cake, and explained that it was because I had never been 'nice' to her. After that they were friends on fb. I was pretty pissed off, especially about the cake making for some reason. Rolling on a couple of years, we had SS intervention which I told my dad about, and he told his wife about it. I was kind of hoping for some support from one of them, instead of which they cancelled their impending to us, and SM told half sis all about it. Next thing, half sis is on fb to dd, asking if everything is alright at home, quizzing her about what had happened, asking quite probing questions, saying how worried she was about dd and ds. It was making dd feel quite uncomfortable so i sent a message myself and asked her to stop quizzing. Which she did.
Now, I do nose into dd's fb account from time to time as I worry about fb bullying, and I have noticed that dd has sent a few messages to half sis saying hi, but half sis ignores her completely, not even saying hi back.
Now I feel kind of guilty on some level for ending this relationship.
AIBU? or what?