i guess yujin got scared cuz of how aaron acted and he remembered how sweet aaron was before rather than now
It’s similar to how his parents changed drastically, one incident was enough to turn their loving sweet hugs and kisses to cold and abuse
He might be seeing Aaron in the same boat
definitely and seeing how yujin is scared of his father maybe he saw his father in aaron cuz of how he acted
that makes sense
i didn't get what triggered yujin... Hope Hunter let him go at least for now