This happened nearly 2 years ago and I still can't let it go. We were all at home with our parents for lockdown, sister, myself and 2 brothers. One morning while the 4 of us were up my sister and I got into an argument over the most petty thing. Next thing while we're arguing in the kitchen she tells me "Nobody wants you here anyway everyone wishes you were dead." It stung. One brother stood there laughing egging me on to fight her and I walked off, upset. When I told my mum about it sister immediately twisted her story and pretended she said something else. Fast forward two years later, I still feel so upset about the comment and can't move on. Last year there was something else awful as well, we were having a family dinner and she looked at me right across the table smiling - "it's a pity we can't dispose of you and throw you off the edge." In front of everyone else. I don't know which stung more, that comment was completely unprovoked, I wasn't engaging with her and next thing she says that in front of our family smirking, cool as a cucumber. I can't move on from these comments and feel like I'm the one in the wrong for still being upset. AIBU for still being upset and not being able to move on?