<< I on the other hand don't think everything is going to be ok... but what am i going to do? >>
Not a damn thing. If your relationship can't survive one nine-month seperation, then the two of you aren't right for each other.
The only thing you can really do is accept the seperation, and make the best of it. This is obviously something that she wants to do, and holding her back from it would be a selfish and cruel thing to do. You need to support her and encourage her to make the best of her time abroad, while you do the same at home. If you truly love her, let her go; if your relationship is solid enough nine months will fly by before you know it. At your age, though, you need to accept that the odds aren't in your favor.
My advice? If you really don't think your relationship will survive the seperation, then break up with her now and go to Mansfield in the fall. You'll both get so much more out of the experiences and grow as individuals. Get together once she's back, and see if the old feelings are still there. If so, then you're both better for it; if not, you've saved yourself nine months of worry, jealousy, and heartache.
FYI, not all long-distance relationships fail. My brother and sister-in-law were apart for 18 months while he was stationed in South Korea. My girlfriend and I have been dating for 4 years, and have been apart for over three of them. It can work, but it takes a lot of effort, and most importantly, a lot of trust from both sides.
