AHHHHHHH sorry i keep racking my brain for one but all i can can think about is more enemies to lovers vibes to it where yj wouldnt want to admit to his attraction to bg and not just him being in denial bc they're friends which might be more what you're looking for^^
the closest i could think of is fool no one else but me by beemobeemogyu bc if i recall well (I have a very bad memory so I might be wrong ><) since it's a/a and they're close friends yj doesn't realize his attraction for bg is what it is and he's EXTREMELY DENSE like painfully so but in the best way possible :3
otherwise for the more enemies to lovers take on this, on the top of my head:
turn up the heat by heaveninbusan
living with trouble by daeguzzn
lost within the stars by honerain
lost and found by sonderess
all for you by Kanabeae
hope at least one of them might scratch the itch anonie^^ if anyone can help with more recs they'd be extremely welcome<3
i do think it would be lots of fun to add to a fic!! good good good good good food for thoughts!