Is it normal i have a crush on someone i am probably never going to meet again?

I have posted this story with different question here before (just in case you may find this a little bit familiar).

I met a guy from other university (but same major as me, computer science) during an IT event a while ago. The event lasted a few days and we spoke everyday, and I think he's definitely a friendly and funny person who I happen to find cute too. After the event we became facebook friends and that's it, we don't talk anymore.

I somehow realized that I liked him after I arrived back in my university and reminiscing the days I had during the event. I remember my friends (who are a couple btw and they seem so eager to find me a boyfriend) teasing me like "Is he your type?" "Do you like that kind of friendliness in a guy?" "Do you like a very nice guy like him?" But I just brushed them off.

Now back in my university I feel so useless for having this feeling. There's so little chance we're going to meet again, our universities are hundred of miles apart and there are just so little chance we may bump into each other again. Plus, as I said earlier, we don't talk anymore.

I really want to let go of the feeling (because what's the point of having feeling for someone you're probably never going to meet again?), but at the same time I also kind of feel like being obsessive with the feeling itself. So see, since I entered university I have not fallen in love with anyone (computer science is full of guys with personalities of stereotypical nerds, not that I don't like them, I just don't find them attractive anyway). So it's like now I find someone who is different I feel so happy I feel this way again. And at the same time I can only remind myself how useless this feeling is.