For context, I’ve been riding since I was a young kid and have always owned my own horse. Last year I had a nasty fall and cut my leg open and broke my ribs, leaving me unable to move for weeks and drive for months. As a result I have not ridden since. At the beginning of this year I let my eldest niece ride my horse but told the family that I was planning to sell. When lockdown happened my SIL stopped her kids from riding and I heard nothing from them about my horse. I decided to sell her through a business that a family friend runs because I need the money and have found a lovely home for her to go to (she’s been very lonely since DD’s horse died). But this was advertised on FB and SIL found out and was furious. She claimed that my niece was heartbroken (I saw her and she was not bothered) and so was she but neither of them had mentioned anything to me about riding my horse again. Brother really did my head in when he got involved and called my beloved horse an ‘it’. This was all over text by the way and things started to turn ugly so I just stopped replying. We live about two minutes away and I was always around dropping off shopping for my mother, so surely it couldn’t have been difficult to ask me about my horse? AIBU to not want anything to do with them anymore? I’m still sending my nieces and nephews birthday presents and such but I don’t want to see SIL or brother.