The fact that the neighbor knows Dohu and has called the cops on him repeatedly, tells us that
Dohu must have gone back to that apartment repeatedly over the last four years, to the point where that guy wants to move states.
Every time he got drunk, he ended up at the place where he last felt loved. Because in his heart, that door is supposed to open again.
He has hoped for four years that Juheon would answer, even though it never happened.
And yes, both of them made mistakes.
Both failed to communicate.
Both got hurt.
But one of them has spent four years drowning in the consequences, while the other one walked away and avoided dealing with it. From what we seeing right now, Juheon was able to become a actor and has connections to get a good role, his life looks like it moved foward. while we see Dohu get worse everyday and still live in the past and in guilt, I fear he will collapse soon.
At some point, pain stops being a reason and starts becoming a punishment.No one deserves to suffer this long , especially someone who never understood why he lost the person he loved.
Dohu has hurt enough.
It’s time for Juheon to finally open the door and stop punishing Dohu and forgive him, or else Dohu can find someone else who will love him.