As Wonwoo was walking away, he couldn't stop his heart from breaking. He could've walked away from the beginning, he could've stopped himself from talking to the taller boy. He could've saved himself from the heart break. But he fell anyway, into this dark deep hole that he once called love. 

Now as he walked away with every pieces of his broken heart, he wished Mingyu could've loved him more. Then he realized that was when he got it all wrong. It had only been him from the beginning. As hard as it was, he still wanted to see Mingyu being happy, with or without him. His broken heart was just a little sacrifice that he would have to make.