The other night he invited me to go do something with him and his friends. It started off perfectly innocently. But then we began to flirt quite heavily. After a few drinks, we ended up making out.
I know he has a girlfriend and it makes me a terrible person, but I really like him. He seems to really like me too. I'm not sure how to bring up what happened. Things have been very slightly awkward since that night. Do I say something?