The crime of forcing a person to give you money or do something for you, usually by threatening to make known something which he/ she wants to keep secret.

Emotional blackmailers use fear, obligation and guilt in their relationships, ensuring that others feel afraid to cross them, obligated to give them their way and swamped by guilt if they resist.

First, they gained their victim’s trust, and then they exploit that trust to extract their motives. 

This behavior can harm their emotional well-being and create a toxic dynamic in relationships.