Getting over an impossible one sided obsession

I was in love (without being committed) to my classmate, when , due to the pressures from home , I was asked to meet the son of a family friend for a typical "arranged marriage". I went upto meet him in a very casual attitude , with my mouth practically gagged by family diktat and felt so unscrupulous to meet a man , while i was close to another.
But the one I met had a genuine attractiveness about himself , with his humane views and liberal attitude all that i respected. I tried to make myself as rudely repulsive as possible to let him off the proposal , unconscious of the fact that somewhere, I was touched. It has been over a year, and I 've never been able to forget him.
I dont know why this longing exists ....whether it is just my way of clinging on to my withering dreams of leading a very unconventional life !
I am not commited to anyone now..and of all the guys i have met in my life , I find this person exiting. I've been googling about him, very unresonably. And there is no hope, ever of getting in touch with him. I do not want to marry him. But wish I could be acquainting with such an interesting person. Still, it doesnt seem possible. It's a small world , filled with big egoes . I want to be free of the memories of the 2 hrs we had spent. I want him out of my mind . The thing is I feel so worthless, and ignored. I hate to admit it. But I have. It is more of the offended narcissim in me.....I want to forget. forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.forget.