OP I just read your story and
If you can, you should message him and say hi. It doesn't have to be a long message or anything. It could just be like "hey, how've you been" or if you're ever in town just ask to hang out.
My story:
I met him (my crush) in high school, sophomore year. We weren't friends at the time but we were in the same circle of friends and we had some classes together. As the years went by we started to know each other a little more as we all would hang out in the same spot on campus during lunch with the big circle of friends. Then senior year came, and my high school best friend (and the only close friend I had in high school) started to distance herself from me, so I would spend lunch alone amidst the big circle of friends. I started to feel like a loner, and I was embarrassed so I left that spot so no one would notice. But he (my crush) noticed, and he showed concern for me and started to hang out with me more. Basically we became friends (maybe because he pitied me), and for that I really appreciated and was grateful of him, since he was there when I was a loner. Because of that I developed a crush.
Then it was time to decide which college to go to. We were hanging out one day and we were talking about colleges. I was originally gonna stay in town, but he said he was planning to go to X college, and I was like "OMG I was accepted by X college too! We should go together and dorm together!" And so we did. Honestly, it was probably the biggest mistake I've ever done. I honestly don't recommend anyone to do this. Basically it was a mess. He enjoyed college and joined a frat while I remained a loner and bitter. It was not good. It's sad because he's honestly a good friend and we've shared amazing and bonding moments together but my feelings for him clouded me with hate and resentment. I dropped out of college, then went back to that college but only to drop out again
In the end we're still friends, but since I'm back in town and he's out of town in that college, I don't see him much anymore. It sucks because in the end he is my best friend. He was my friend before he was my crush; because of that I'm conflicted

on the one hand cutting him off completely will let me get over him quickly, but on the other that means that I'll lose a good and important friend

But it's probably a good thing that I don't see him often anymore. But I still miss him

To this day he still doesn't I have a crush on him (but sometimes I think he may be a little suspicious).