Narcissistic triangulation must be stopped immediately because it can make the victim feel confused, unwanted, competitive, more servile to the narcissist abuser, and even planning to harm them. When the narcissist triangulates your relationship, be well aware that they are purposefully trying to instill jealousy and insecurity in you. Victims of narcissistic triangulation often feel betrayed and isolated. They may also be made to believe that they themselves are the source of their problems.