If its her friends, you're gonna have to get used to it. They're gonna be with her everywhere at everytime. Plus, like the Spice Girls said, and I hate myself for making a Spice Girls reference, "If you wanna be my lover, you gotta get with my friends." You want to get to know her, get to know her friends. Your girlfriend's friends are the key to getting alone time with her. If you get in good with her friends, you'll get in good with her and the whole thing will get better from there.