I think junhyuk is having a hard time of not being with yeonwoo all the time to the point where it's straight up abandonment issues like he's trying to convince himself that yeonwoo is still fragile so he'll need someone to protect he's convincing himself of this so he thinks he's needed cause if he doesn't he won't have any purpose to be around yeonwoo or just no purpose in general....... but that's just what I think 
