I met him for the first time, but I know him by name and face. He sends sweet messages, insinuating something that he likes me... that he loves me... Although it was in a joke form, but I got the chance to ask him, how true? And he said, he likes me.I can't believe at first, but we feel mutual. Until one day, I texted him and confessed that I feel the same.. We went out twice and ate outside. We shared stories and had a mutual feelings... One day, I asked him , if we can be together, as partners?. But, he said, three months remain before he graduate from college.. and he had decided to leave where we are now after graduation.. Hearing that from him that made me sad and almost cry.. I only held my tears... His reason?, he can not manage a long distance relationship if ever.. I said, no matter how far he will be, I will find time to visit him.. But, he can't believe to what I said... I felt he likes me, but I felt the sudden change of his feelings, too... I got mad at him, it seems that I only waited for nothing...
There was a time, I saw him. I didn't have the nerve to talk to him, cause I got mad of what he said, That it is not possible for us to be in an intimate relationship... I texted him, I told him, I saw him but had no nerve to talk to him,he said,"a missed chance"...
I understand his priorities but I am not only satisfied of his reasons. How to forget and let him go? I want this feelings to be freed. What shall I do? Help!

I'm an instructor and he is a college graduating student.