I gotta give it to KID - lol using his initials is diabolical! Ido gave the best response. There's nothing he can say that will give the best explanation to his behavior. Even I'm confused with how he handled things. Like why did he rape Sejin, again, after Ijung, when it was obvious he was angry at Ijung and he handled his brother after what he did. Explaining is not making excuses, just explaining would suffice but there's nothing to explain! So yeah, just kept saying sorry is really the best thing he did.