
To complement the below comment
Then I guess that should justify why it's so hard for them to become lovers after being friends for so long, these kind of dynamics are hard to let go and change, from friends because of interest to lovers due to hormones, it's hard to accept how volatile love is.
How is even enemies to lovers better than that person you trust your life with in a real life setting?! Don't call on the hypocrisy of drama. Just because on is more complex to navigate on the psychological level doesn't make it bad.

The story did weird jumps around the 30th chapter and relationship progress became a jumble, like, be at peace, then "confess" without confession, cold war and blame throwing around?
It doesn't even follow on how fucking weird and psycho Dohyeon is or how to solve that side of his, still a pervert till the end. And then show that Eunho actually guessed ................ but pretend to be oblivious without a decent transition on story?
Could have done better with at least 3 more chapters or events during that period to explain things better omg

The probability of Jei also being aware of Seokjin's feeling but acting dumb (and even getting goddarn engaged) as petty act of him never taking the initiative is also high ah.
Even if he doesn't explicitly think so, sometimes humans are petty without them knowing for things they take for granted. He takes for granted Seokjin will always be by his side, even if only a friend, and Seokjin as well, is doing his best to keep the friendship at the cost of heartbreak.
Anyway, Han Jei deserves no sympathy for leading on a lady.
Idk what did he expect when he pushed him away as children, orchestrated his encounter with danger and acts like shit 24/7, honestly I'd be damn surprised if he has the consciousness to know what and how he did to obtain Hamin's affection was wrong and can cost him everything.