I go to this nusic school where this guy that I got along with very well was at. one day he left and said he wasn't going to come back anymore. I felt very bad.I tried to get him back and he came to visit last tuesday. I was so happy to see him that I ran to him and hugged him but when he left that bad feeling came back. What should I do?

To have a relation two individuals have to want each other. If he is not interested, it is sad, but you have to accept reality and try to find somebody else.