You know the script. Man courts woman, promises to give her the world and treat her right, then after he he what he wants (between her knees) he starts mistreating her.
The woman on the other hand is so invested and has burnt so many bridges and relationships over this man, that she feels trapped.
The man proceeds to use every tool available to him, to keep the woman under his spell. Until one day, she decides that she has had enough and starts looking for a way out.
When she finally breaks free, the world is treated to a public gallery, of the lame excuse of a man that he was.