Zichen doesn't let go. He even rests their heads together, a few tears rolling down his cheeks. This is a pain they share and if Xue Yang blames him, it isn't half as much as Zichen blames himself.

Maybe it's better he can't speak. Instead he presses a hand over Xue Yang's heart and then presses that same hand over his heart.

They are the same. Both mourning.