Why did the proprietor of forensic Qin Ming coffee shop frame Qin Ming?

Forensic Qin Ming coffee shop owner framed Qin Ming for complicated reasons. First of all, her husband is a rapist and a murderer. She doesn't care about the truth, only loves her husband. She has some psychological distortions, and thinks that Qin Ming is the chief culprit that caused her to lose all her happiness. Besides, there is a darker secret: Chi Zi is the wife of a serial killer that Qin Ming personally caught. She is a heartless person, always trying to frame Qin Ming, even kidnapping Dabao to threaten Qin Ming, trying to corner him.