AITA to feel uncomfortable that my sister is still close to someone who bullied me when we were kids even though that person is her longtime best friend? I’ve tried to bring up how unsettled it makes me feel, but I don’t think my sister really understands why it still affects me. I have addressed it with her but she will retort that we were kids then and we are now adults and “stuff happens”. I do recognize that the bullying happened when we were children, and I’m not trying to hold a grudge or punish anyone. But the truth is, I still don’t want to be around someone who made me feel so small growing up especially since she’s never apologized to me directly. She has apologized to my sister about how she treated me, but that doesn’t feel like accountability. My sister is adamant that her expressing remorse is enough. My sister has even gone to lengths to comfort her friend and tell her to stop feeling bad. What bothers me most is that my sister continues this friendship without acknowledging how deeply it still impacts me. I’m not trying to control who she’s friends with I just wish she could understand why her closeness with my former bully feels like a betrayal, even after all these years. For more context, if I bring it up to my sister she will throw it in my face and tell me that we were kids ( elementary to junior high ages) when it occurred and to essentially get over it. I do agree she is partially correct but I can't ignore the unsettling feeling I get knowing that I would never do that her. Furthermore, if she hangs out with her “ friend” she will go out of her way to hide its that specific friend or just mention if she tells me the name she knows I will get upset. I hate the way this makes me feel and I do feel childish having to constantly ruminate about it.