Girlfriends going travelling. Emotional?

Basically my girlfriend is going travelling for up to 5 months. I'm already under pressure of my final year of uni and naturally worried about what the future holds. So the fact that I know I won't be able to really speak to her or see her for so long is adding to my emotions and I'm finding myself crying now and again. I feel like such a sissy admitting this. I'm an emotional person anyway but I never usually cry. I'm just gonna really miss her, and by the time she gets back she'll only have free time for a few weeks before starting her masters, by which time i'll be in the boat she was in in June and trying to find a job. Wish things were different. Just getting so annoyed that i'm a bag of emotion all the time. for god's sake.