Will a married narcissist tell your spouse about the affair as he threatens?

A married narcissist may use threats of revealing an affair as a manipulation tactic to exert control and maintain power over the situation. While they might claim they will disclose the affair to your spouse, whether they actually follow through can depend on their motives and the potential consequences for themselves. Ultimately, their actions are driven by self-interest, so it's difficult to predict accurately. It's essential to consider the dynamics of the relationship and their typical behavior patterns.