Ah as I thought from last chapter Song Xun killed herself didn't she?
Those whatifs are torturous. Unfortunately depression and suicidality isn't the kind of thing you can do much about as an outsider even if you do know what's going on.
God that must hurt for Song Li, to be told that there's no emotion in something you felt like you poured your heart into sucks.
No wonder she is thinking of quitting writing!