Dunno how to deal with this

I had sex multiple times with a coworker and I can’t stop feeling turned on at work. I try so hard to not look and sometimes you can’t avoid it. And my coworker is so hot to me. I hate it. Also we had a horrible falling out and I feel angry at my body for fighting my brain.. I cheated on my ex because I couldn’t stop that shit I really did try but it was that difficult. Like I’m just a body couldn’t say no. And I ruined my relationship and I feel angry at myself but I can’t stop this terrible feeling