Is it okay to date a guy who has a girlfriend?

Ask his girlfriend. Some relationships are open like that but most aren't. Rather than ask him and risk your reputation, ask her.

Answer: Um personally, NO.

uh not a lot of girls or woman like to share there boyfriends and if they do then it wasn't that serious in the first place, because when you love someone, you don't want to share them. And if the guy does try to date you and his girl, then he's another Tiger Woods and Jesse James.