I understand that you are hurting but from the things you wrote it seems to me that this girl is not ready for any kind of commitment. I know you feel that she is the perfect girl for you but you would be amazed at how much your taste in women will change within the next few years. I would suggest that you try to find other things that you are interested in doing instead of waiting around on this girl to have time for you. The more interests and activities that you are involved in, the more interesting you become to other people. You can't change this girl, but you can change yourself. Try to move on and stop holding on to someone who obviously doesn't feel the same way you do. Change is hard but it is one of the only things about life that we can be sure of. My thoughts are with you.