I have a friend let’s call him Jack that subtly flirts with me although he has a girlfriend. It is no big deal because we don’t live in the same town anymore but I’m just curious to why a guy would be interested in other girls if he already has a girlfriend. Like isn’t that a turn off for the girl if she gets the wind of it? I would certainly not like it if my boyfriend went on complimenting or flirting with other girls. It’s not cheating but to me it seems like the guy doesn’t take the relationship seriously enough to put a distance between him and other girls like most guys do.