Is it normal to be friends with someone you once had strong feelings for?

So a boy told me he really wanted to be with me. He is a wonderful person but I don't have a sexual attraction for him.

This went on for over a year. he was stubborn and really believed we were meant to be together. He is great friends with my 2 best girl friends. I just wanted to share a friendship with him like he has with them.

During the last month, he has become cold and indifferent toward me. Maybe he has found someone else that he likes or he has decided that we were going nowhere. I am also leaving for college at the end of the summer.

So my question is: Can you be friends whith someone you once had a strong attraction to (vote yes) Or can you not be friends with a past strong attraction (vote no), Thanks!