TW: molestation

I’m sorry this is kind of a long post, I just really need advice and don’t know where else to ask because my sister might see.

When I was 6 my cousin pushed me into a closet, closed the doors, and started doing things to me. My aunt found us and told my bio father (aka KP); they of course didn’t think anything of it because we were just kids.

Flash forward to 16 and my cousin took things up a notch throughout the years. Because of him, I’m disgusted by feet and afraid of the dark. When I tried to tell KP about what was happening to me, he took my door away and said that it was experimentation and it needed to stop (again, never once giving me the benefit of the doubt or believing that I was the victim).

I’m now 27 years old (F) and have been in and out of therapy for various reasons, one of them (obviously) being my cousin and the things he did to me. I’ve told my sister (now 20) several times throughout the years (once she was old enough to understand) what our cousin had done to me. I’ve left out major details she didn’t need to know but she knows enough to understand.

She says she’s sorry for what’s happened but that it doesn’t affect her relationship with him and that she still wants to see him and spend time with him. She says it isn’t fair for me to ask her to end their relationship and stand in unity with me. My whole life I’ve been ignored and treated like a liar, and my own sister doesn’t even care enough to stop talking to the one person who ruined a big chunk of my childhood.

I don’t know what to do. I just need to know if there’s something I’m missing or if I’m being selfish for wanting her to be on my side.