need advice I like my guy bsf who has a gf

Ik this isn’t exactly a place to share sumn like this but I have no one to talk to abt this that’s why I’m here but yeah like the title said

I’m rlly good frnds with this guy like we’re just genuinely really good normal friends we have clear boundaries and he’s a very respectful man but the thing is I like him ,I’ve had a crush on him even before we became frnds
As we became good frnds I learned that he’s in a long distance relationship with a girl from an another city and it’s serious between em because they’ve literally been together for 6 years

Despite knowing all these things I still like him and it makes me feel so damn guilty at times while we’re talking, at some point I thought I’d get over this silly crush of mine when I learnt that he had a gf but no as we became good frnds I just started liking him even more and I don’t think that will change because he really is a great guy

And the other thing is my friend is also friends with him but not as close as I am with him and everytime she tells me they spoke or tells me sumn from their conversation it kinda pisses me off

But I find it ridiculous that I get jealous over my frnd talking to him rather than me knowing he has a gf, maybe it’s the fact that they’re in a long distance that it doesn’t bother me, meanwhile me him and my frnd are irls and literally in the same uni

Idk I just feel very weird abt this situation and I don’t like the fact that I’m feeling and thinking these types of things idk I feel very lost abt all this

So thank u if you’ve read this so far and heard me out, I’d like ur advice on this and tell me what u think abt this whole situation