my theory is honestly mostly based on the title, it’s "unchanged man" for a reason, like the author wouldn’t tell us abt this fake narration if it wasn’t important for the present plot especially when the story leads to an end. so i like to believe that yuwon indeed didn’t change.
+ it wouldn’t make sense that all what dohun did to seungmin was only jealousy or precaution after we are aware that yuwon’s pov differs from the reality at s3, like it wouldn’t really fit the character storyline imo. but yea, it’s mostly the title and the author direction choices
(hope it was understandable, english isn’t my first language lol)
Interesting take and don’t worry I understood! I also noticed some parallels between dohoon enrolling at the same school as yuwon to dohoon as an adult starting at the same work place together. He finds Yuwon being grilled in the hallway to later reveal he goes through that bullying after sticking up for someone else. After 13 years he hasn’t shown to change. I wonder if what happens to them as adults in a way reflects the true events of the past and its shown to now be looping.

now that we know their povs r different, what if sungmin was actually a bad guy but yuwon didn’t see it that way and dohun actually tried to protect him all this time…..