Is it possible to have buried feelings for a guy 4 years later?

The first time I ever saw him was when I was 10 years old. I was ping him in the crowded hall after church and for some reason I remembered him. The next time I saw him was at the church camp when I was 14. And I don't know I really didn't like him at first. I thought he was too full of himself and trying too hard to be cool and stuff and I really liked another guy at that time. But something happened, like our eyes met during one of the bible studies and its like my world was turned upside down and I haven't been able to forget him ever since. I really really like him for 2 years straight, even though he didn't seem to ever notice me. WE stared at each other at church a lot but he never came up or tried to talk to me. He's really a kid at heart. And I rearely saw him. My friends were friends with his friends but I never really talked to him. But the more I saw him and to know him I just liked him more. And sometimes I would turn around and he would be sitting there, looking at me and our eyes would meet and his eyes were always so- i dont know how to describe it but they made me feel like melting in a puddle kind of. After 2 years of liking him and realizing he probably didn't care much that I even existed I tried to stop liking him and eventually I stopped thinking about him and moved on. I liked other guys and dated before but once in a while everytime I saw him my feelings would all come back and it would take me about 2 weeks to get rid of them again. And i always tell myself whatever I never truly liked him or whatever. But then one random day after 3 months p he suddenly somehow appears in one of my thoughts and become this horrible infection. Why is like that? I don't think about him all the time but the feelings come back anyway. And they never truly ever go away, I think they're always somewhere in the back of my head or in the little shadowy dark corner of my heart. Was he like my first love or something maybe thats why I cant truly forget him? What do you think.