I must admit we were young (I was 17, he 20). We were just friends, but I was falling in love with him. I never shared my feelings, because I thought there was no way it would be reciprocated.
We were at a party, and we were talking. He asked me if I had feelings for him. I had no choice but to admit it. He said that he wasn't attracted to me, and that he would never feel that way. I was hurt and embarrassed, but not surprised. I lacked a lot of confidence.
We were friends for at least a year after that, and he had girlfriends in between. I continued as normal. I distanced myself in the end to preserve my sanity. However, he suddenly started being 'different' in his approach to me.
He was kind and considerate, offering me lifts etc. We went to the cinema one evening, it was cold, and he put his arm around me. I told him not to, because I felt differently to him, and that I couldn't help how I felt. He told me that he thought he felt the same way.
We went out with each other for two years, got engaged, and were married a year later, in 2002, when I was 22& he was 25. Almost 7 years on, we have 2 children and another on the way, due in April.
I am NOT saying that it will always work out this way, just that someone "not being attracted to you" doesn't always mean that. Sometimes, it means "I didn't expect this to happen and I need a bit of space and time."