Responses
Same here. It doesn't make sense at the moment given their current relationship where Sangwoo is just tolerating him somehow, his character (moreover how he seems to be asexual and logical) aka it doesn't seem like him to waste his time being fuck buddies with someone he doesn't even like and finds to be a nuisance.

Spoilers
I know apparently in the novel they’re supposed to be fuck buddies and all but there isn’t a yaoi tag in this. I wonder how different some scenes will play out. Hopefully the ending is the same ??