@lalalalala Ok, so, piecing together the comments I saw on another site, I've come to the conclusion that he feels guilty about him getting hurt because the lights they installed at Favelas had something to do with triggering Jaeyoung's episode at the beginning of the manhwa
"I wonder how many calories bit**** burn by jumping to conclusions"
Pfp The Hunter Wants to Live Quietly (LOOK AT MY BABIES!)