i think the flashback of him as a child in that scene tells us enough; sejin is now conditioned to blame himself for everything
Yeah, his adoptive father was so incredibly evil, I just wish he had confessed to Ido at least beforehand /: the worst is yet to come
his trauma probably prevented him from doing so. ido wasnt the friendliest during their marriage either so i understand why he didnt tell ido. ido is also kinda unfair for expecting sejin to tell him earlier bc who knows how he would react. but yeah it WOULD be nice if ido knew that sejin’s father was the one behind all of this before the upcoming disaster happened. but that’s only a reader’s dream
yes, he technically did do it on his own, but his father basically coerced him into it. I wish he had talked about it to the ML before