Random Question

I was molested by my Uncle when I was younger. I also have OCD and am particularly OCD about him as my Aunt decided to stay with him. 😡 Well, he was at a birthday party for a family member tonight and when he left he patted my back and said that 'It's good to see you guys." Fucker! Anyways, I'm wondering about how people germs work. This may sound crazy, but I can't stand that he touched me. Like, how quick do they die, how quick do they transfer? I don't know, it just drives me crazy that he's still in the family. I have so many fucking dreams with him in them around the holidays because I never know if he's going to be there or not. It's a whole mess. Anyway, I'm not getting into the details, bit any help would be appreciated. Thanks!