Trust is the foundation of any good relationship. Part of that entails giving her the freedom to have a life separate from yours without asking 20 questions or having jealous fits, and knowing that she's not taking your trust for granted. Keep things in perspective; would you like a girlfriend who kept tabs on every move you made? Probably not, and the same goes for her. And always look for a silver lining; in this case, you'll have time to hang out with your buddies, and have something to talk to her about the next time you see her.