Guys, do you ever feel male competition?

Anonymous
Guys do you ever feel male competition with other guys over a girl? For example, if you are working on a lab with a girl lab partner and you notice that a guy across the room is giving the eye to this girl and smiling. Would you feel threatened by this other guys "eye" attention? Would you feel like you had to compete, even if you had a girlfriend? What I am trying to understand, is do guys feel jealous if another guy gives shows interest in a girl even if they have a girlfriend? Or do guys only feel jealous (competition) if they like the girl and another man is giving her attention. Do guys feel like this with any girl? Guys, what do you do when you feel the male competition?
Guys, do you ever feel male competition?
21 Opinion