Ask Marshall
-Liking a guy who has a girlfriend.
If the guy has a girlfriend, you should probably lower the level of flirting.
If a guy has a girlfriend and is known as a player and he keeps flirting with you, then stay away. He just wants to see if he get you to put out.
If a guy isn't known as a player, and is still flirting he either
A)Really likes but doesn't want to hurt his girlfriend.
OR
B)Likes you a little, and just likes to flirt. So he flirts with you while hes in a relationship because he knows it won't lead to more with him having a boo.
Either way, be careful. Girls can get bitchy when a guy leaves a girl for another girl. And, you can get hurt if you have feelings for a guy and acts like he has the same feelings but really doesn't.