Almost raped

I was 9 and my cousin was 10 he was playing GTA and I was playing on one of the toys in the room and then he asked if I knew what sex was and I said no and then he pulled his thing out and showed me it and the next thing I remember is I was still sitting on the bed but it was a while after and then he sits close behind me and I just rub downstairs to my Dad and ask him when are we leaving and he says he doesn’t know yet and then when I looK at the stairs my cousin is staring at me I guess tryna make sure I don’t tell anyone. My mom found out about this when I was 12 from finding my old diary the only thing I hate her finding it is that they got my aunt involved and we all had to meet at a restaurant to talk about what happened a restaurant where people were at to see me crying and all she had to say was we are all family and he was young so we should move on from it I’m not gonna move on from it every time I look at him I see the same thing over again and btw I didn’t even know he was gonna be there all I knew was that we were gonna eat with my out aunt