Through his 18 years of living, Baekhyun suffered a lot of regrets. It was when he turned 18 that he found his favourite one — that is meeting her, the one girl who changed his life for the better, and yet, never manifest any intention of liking him back.
"People change and forget to tell each other." Things didn't work like it used to be. Everything changes, and they don't know why. They just know that everything won't be the same again.
(credits to my chinggu