I love my bf but have some feelings for someone else

Me and my bf have been together for a year now. I love being around him and we’ve gotten so comfortable and close. We hang out every day together. We can be our weird selves around each other. We always have a blast and trust each other. He’s super open,supportive and accepting . He makes me laugh and makes me feel loved and never fails to let me know that through his actions.

Lately, I’ve been having sexual (possibly romantic) feelings for one of my roommates and it’s scaring me. Me and her share similar interests in spirituality and have deep conversations. She’s funny and kind and attractive which I love our conversations. I imagine her sweeping me off my feet. But I also imagine my bf sweeping me off my feet and kissing me. I’m confused. I love my bf and don’t want to lose him. I’m worried now that I might by thinking this.

Note: this has happened before with another friend. We became so close and always talked about spiritual stuff and I ended up having a crush on them.

Maybe it’s just part of my OCD? Please help! Thank you so much!