<human>: My (27 M) girlfriend (21 F) just left for her summer course in her field of study. We have spent 6 months LD while she was attending university without a hitch. 

Since day 1 I've felt like she deserves better than me, and have considered myself very lucky that she has felt the same way in return. 

She is very intelligent, pulling in a 3.8 GPA in her second to final year of university. In a sense of the word, this has left me feeling very insecure while she is away for a summer course for 3 weeks. I feel insecure and mentally obsessed with the possibility of her finding an equally intelligent man while she is at her course. 

The reasonable man in me knows she wont cheat, though I can't stop the insecurity from creeping in. 

She is very introverted, but her new room mate is not, and has already drug her out to play "rugby with the boys", and they returned to play cards and drink in the dorms. 

How do I get over myself? any help would be appreciated.

Provide a brief overview of the text.
<bot>: I'm unrightly paranoid my GF may find a more suitable partner than I while away at a mixed dorm, university summer course. Hoping Alcohol wont lead to lapse in judgement on her part.