as an anthropology student, I'd definitely be backing up Jihye. from an evolutionary perspective, sex and romance probably developed for the survival of the species, but that doesn't mean that's the only reason we can/should enjoy them
...there is no way Sangwoo isn't autistic or otherwise heavily neurodivergent. I think it's fine to be frustrated with the story progression, but as someone who's also neurodivergent (just in opposite ways to Sangwoo), I feel for him. This world isn't set up for people like us and people who are understanding like Jaeyoung are a godsend.
Also, spoilers for raws.....
I'm not fluent in the Korean but I'm pretty sure that in the next chapter, Jihye slaps some sense into Sangwoo re: his internalized homophobia. She is my queen lol