Jealousy?

So I have this girl friend who when she meets our guy friends automatically starts talking to them and trying to be super close with them. Im happily married but for some reason this absolutely drives me insane. And i get sooo angry with her! Is this normal? I just feel like she's an attention whore but she almost tries to show up my friendships with those guys and she talks to 6-8 guys at once and lies about it.