The reason why the title of the previous chapter is called "Mother Killed Me" is taken from this one in "Mother Goose Nursery Rhymes" -

My mom killed me,

My dad is eating me,

My brothers and sisters sat at the bottom of the table,

Pick up my bones,

Buried them, buried to the cold stone monument.

The mother in the nursery rhyme received the punishment she deserved, and Chang Yao's mother killed her own child, and she would also suffer the consequences after all.