Question

well, it's hinted that he liked eunjeong when they were younger. whether he still likes her in the same way or not is unclear, but i'm sure that he still

omg i accidentally hit post
but i'm sure that he still cares for her since he says he's glad she is still alive.
as for eunjeong, i don't think she necessarily hates dajeong. if anything, right now, she must be feeling really guilty towards her.

man im so sleepy rn that i feel like i basically just told you the obvious without just directly answering your question. sorry i was really no help ;o;