<human>: Could you distill the essence of the text into 1-3 sentences?

I 24/M met my girlfriend 22/F six weeks before I was to leave the country for five months to study abroad. We both knew I would be leaving soon so we didn't put any kind of label on it at first or have any long term plans. We just thought we'll go out for a while and then I'll be gone and maybe when I get back we'll see what happens. However in that short time period we found we were both seriously attracted to each other both in terms of personality and sexually. We didn't have sex even though we both wanted to because she didn't want to have sex so early in a relationship and I felt it would make things more complicated and liked how easy going it was. 

The night before I left we talked about what we wanted and we both knew that when I got back we wanted to be able to have a shot at a serious relationship so we made it official and decided that neither of us would see anyone else while I was gone. 

Now I'm in another country. Staying in a school of 80 people that's 80-90% female, pretty much all nice and attractive girls. I know if I have sex or develop feelings for anyone else that kinda ruins what I have with the girl back home and if I did anything without telling her that would only make me suspicious and jealous of anyone around her while I'm gone. At the same time I'm living with all these great girls and partying with them and whatnot and it's not as if I can ignore all of them for the entire time I'm here. 

I keep in touch with my girlfriend back home but it's not the same as having someone who's actually here. And of course the thought of how ridiculous it seems to stay committed to someone for several months after only knowing them for six weeks comes across my mind. 

So what do I do while here? I make it known that I have a girlfriend but even then when everyone is partying or just living in close proximity to one another it's easy for things to come up anyway.
<bot>: met a girl six weeks before leaving the country for five months. How do I not do anything with any girl while I'm away?