I don't know what makes a guy creepy, but I'd like to because I think I might fit the bill.
I'm married, in my 40s, and have absolutely no interest in/intention of cheating on my wife, but when I go out with groups of coworkers, etc., I find that the women in the group invariably end up edging away from me and are cool towards me afterwards. I don't
think I do anything particularly creepy - I don't stare at chests, I don't flirt or engage in inappropriate conversation, I don't invade personal space, etc., but I'm clearly putting out some sort of vibe.