Sang-jun: Bathroom scene answered! (Spoilers)

I have seen many people question the bathroom scene, asking why Han-na got together with Sang-jun after his cold-hearted comments. So here is my take:

Well my initial reaction was thinking that Sang-jun is a cold-hearted ********. That being said, after taking a step back and looking at the film as a whole, I realised that Sang-jun, in the bathroom scene, was simply not being himself. "Be yourself" is a message that is constantly brought up in the film. We all know Han-na had to learn the hard way, but what about Sang-jun? He was not himself because he was a pawn that his father uses. Like Han-na, Sang-jun had to go through a transformation, but not a physical one. Instead, it's psychological. Through Han-na, Sang-jun is able to realise the consequence of his actions under his father's rule. Once he realises that managing all these fake "stars" reflects the way his father controls him, he backs out (seen in the scene where he stands up to his father, the boss). That is when Sang-jun completes his transformation. We even see him admitting that he is an *beep* during his innocence line at the end. All in all, you could say that both Sang-jun and Han-na found themselves when they finally found each other.

Thoughts people?