After the Breakup, M works

Chapter 99

    

book in front of her, she wouldn't even glance at it.Song Qiao-ying thought that because she usually hid in her room, she must be studying. Otherwise, how could she have such good grades.No one knows...Chapter 99

"One can know a person's face but not their heart."

What is the meaning of this strange text: >>

"So, you dug the hole for her knowing this would happen...No matter what, you'll end up calling the police in the end!"

Remember for one second