Is this an example of love, infatuation or fantasy?

I have been in love with a man for nearly 3 years now, or what I perceive to be love because no matter what I do I cannot forget him.
We first met when we were 18 and instantly got along well. He made me laugh and forget all my troubles.
After our initial meeting, we continued an on-off friendship, and later he told me his true feelings and how he had always liked me. I told him I felt the same.
But after a few crazy incidents, including a secret girlfriend and him moving to university a few hours away, we no longer speak. Despite all this, I still dream of him, think of him every day and am reminded of him by every little thing.
I’m really frustrated because I wish I didn’t have these feelings for him, and I don’t know how to get over it.