Sehun's always supported Jongin in everything.

Sports, academics, dancing, you name it.

But when Jongin finds himself a boyfriend, Sehun can't bring himself to support him. Not because of the fact that Jongin's a nobody while his new boyfriend is a kingka, but because Sehun's confessed to Jongin before and was rejected.

Sehun lies to himself. He tells himself he's satisfied by just protecting Jongin. But in reality, Sehun's breaking inside.

Really, watching the object of your affection cuddle and kiss someone else while you, who used to be his best pal, are forgotten, how could you not break?