Let me start off by saying I didn’t know which category to put this under. I need support but also advice. My fiancé got caught being inappropriate with one of my ex best friends about a year ago. I won’t say it was cheating but they were all over each other’s social media liking all of each other’s pictures and I’m pretty sure they were messaging but I could never get either to admit it. She and I hadn’t been friends for probably over 5 years when it happened. She was always a homewrecker and didn’t respect anyone’s relationships as long as she could get attention from whatever guy it was. We’ve had this issue in the past with women and that was the last time I ever caught him doing anything. 

Anyways because she and I used to be friends I know things she likes and we like a lot of the same things. I feel so stupid and insane to say my brain is convincing me I shouldn’t like those things anymore because we hate her. Pokemon, hello kitty, certain bands, just small things I used to enjoy I no longer enjoy because I know she likes them and I know he liked her half naked pictures. 

It’s some weird twisted thing my brain is doing to me and I know it’s irrational but I also feel like I can’t help it. When the thought comes in I immediately get sick to my stomach. I want to enjoy these things without thinking about her or what happened or what he thinks of her. Advice please. Please be gentle, I’ve only recently been diagnosed and am very nervous.