Want to Cheat

So I am going to college and I have an exercise class with this hot guy as the teacher. He also works as a security guard at the school I go to. Last week we were talking and I asked him if he had a girlfriend. He said kind of, but I swear when I was walking by the office of one of the secretaries, I could have sworn I saw what looked like a wedding picture of him. I know this is bad but why would someone say they sort of have a girlfriend when it seems that they are obviously married. Well that doesn’t matter because I would do anything to get a chance to sleep with him. The thing is I have a boyfriend who I have been with for almost a decade, yet I can’t stop thinking about wanting to be with him. When I can, I flirt with him and he doesn’t seem to mind. But man I want him so badly. If he asked me to sleep with him tomorrow, I would do it in a second. I know this is bad, but sometimes I like to be bad.