That is a hard thing to go through, the falling out of a meaningful relationship can feel like the end of the World. Fortunately, it is not though, and you still have what you gained from your conversations and encounters. I know that sounds cheesy, but I think it is true. Perhaps it would be a good thing to branch out to other students, and find someone you can trust. I am in school also, and have trouble with that myself. In fact, I do not think I have any real friends there...not that I trust completely anyway. I have found that they are easier to come by outside of the classroom. I am new on this site, but you are not alone. You have all of us here, and we are your friends because we understand. I think you can walk onto that campus with more strength than ever before, and show that you are unstoppable. You can do this.