Emotional blackmail is a powerful form of manipulation in which people close to us threaten to punish us for not doing what they want. Emotional blackmailers know how much we value our relationships with them. They know our vulnerabilities and our deepest secrets. They can be our parents or partners, bosses or coworkers, friends or lovers. And no matter how much they care about us, they use this intimate knowledge to win the pay-off they want: our compliance.
~ Susan Forward