I don't know why, but Roo (specifically his relationship - or not so relationship FWB thing with Seok) makes me think about Please Stay - Francois Klark. It's the "we aren't really more and can't be more, but my life isn't the same with you gone so please don't leave." But it imparts that same inability to stay or meet for me? Just in case that's too far from it I wanted to find another, and sadly got drawn back to the relationship again? I Lost a Friend - FINNEAS just feels like the reflection while they're away from eachother?
((Hope that works, Roo is a really interesting character same as Seok)).
Edit 1: Ahhhhhh!! I'm so happy they work so well! Their relationship hit hard when going through it so to know I felt the vibe right and could give you good songs means a ton!!
Edit 2: I'm still trying to figure out if he vibes with the song, but regardless I'm glad you introduced me to it! Thank you.~