Narcissistic Personality Disorder (NPD) manifests in two primarysubtypes: Overt (grandiose) and Covert (vulnerable), both driven by shame and rigid egostructures. This paper applies the Core Emotion Framework (CEF), a structural-constructivistmodel of emotional regulation, to analyze the psychopathology of NPD. CEF posits thatmaladaptive fusions of core emotions underlie rigidity, inhibiting empathy and adaptivefunctioning. In Overt NPD, Achieving and Expanding are pathologically fused, sustaininggrandiosity; in Covert NPD, Achieving is constricted by Calculating, reinforcing shame andavoidance. The therapeutic mechanism of Detangling—intellectual differentiation,experiential isolation, and flexible re-synthesis of core emotions—is proposed as a pathwayto restore empathy, tolerance, and ego flexibility. Comparative analysis situates CEFalongside established modalities, emphasizing its unique focus on restructuring emotionalgeneration rather than content or cognition.