Responses
I also know that this is unrelated to the ending whatsoever but this has just been bothering me for a while and I haven't really let the ending sink in yet.
It think it adds to the reason Bum fell for sangwoo, not many people have been kind to him and sangwoo saved him in the military . That act of kindness blew Bum's mind. He did also at one point fall for the girl from school because she was kind. Sadly he couldn't fall for the cop. Suengbae would treat Bum right.
So throughout the story most of the many side characters are just straight up rude (minus cake girl). That cab driver shouldn't be yelling at his customer and losing his shit like that. Like I understand that its reality and its harsh and such but I have met WAY nicer strangers in reality. And although Bum is quiet and reserved, every side character he meets acts like they just had the worst day ever and decided to take it out on him. Either Bum is just bumping into the wrong people or I'm lucky to meet nice strangers.