i (21f) am having trouble getting over my friend (20m) who is in a relationship

i (21f) have never really had good guy friends until last year. i struggle with talking to people in general. i have become good friends w/ someone (20m) over the past year, and i am grateful to have a good friend although i have had feelings for him for several months. we are also in the same friend group at college so it would be difficult to completely avoid him. i shut down my thoughts earlier this year because i knew it was never going to happen, and now i feel guilty for letting myself think about him. he is in a longterm, long distance relationship though. i’m not dating anyone now because i genuinely wouldn’t know how to start, so i don’t really know how to get over this guy without cutting off a good friend. i don’t even know that i would then.

i also want to make it clear that i would never act on these feelings. this situation kind of breaks my heart because i have so much trouble finding people that i can talk to this easily.

part of me keeps hoping a weird amount and i don’t like it. how do i tell myself that no, in a year or two we won’t end up together, we probably won’t even speak anymore.

also, now i feel guilty for when i do spend time with him. if my mind wouldn’t get in the way, i could have really great moments with him and not want anything more.