Yes. Get rid of them. If they don't understand the "guys before girls" concept, then there's no need to practice it with them. I have two real friends -- friends that would put their life on the line to save mine -- that I put a lot of trust into. One of them has being going out with a girl since over a year ago. I originally became attracted to her just a little after the 15 minutes of flirtatious babble the two had on a street that curves up the hill. Anyway, I didn't call him a backstabber nor do I think of him as one. He's a great friend and a great guy... powerful in the social underworld as well.
OK! Well, the moral of the story is: if the guys you call your "friends" treat you as an enemy if you pickup a girl that they like, then too bad for them. They must not have had the cajones to get the girl in the sack. The saying "a friend in need is a friend indeed" is true. If you need these guys, then they're your friends. If they need you, then you're their friend. If they treat you as an enemy should you benefit your self-interests, then they don't need you, therefore, they're not your friends.
I hope that was conceivable.