Unidirectionality of Emotions: The Mechanism of Emotional Pair Locking in Pathological Presentations

Emotional Directionality Theory (EDT) proposed that every human emotion carries a directional orientation and that extreme imbalance produces predictable psychological dysfunction. The continuation paper developed the convergent paradox — that opposite directional extremes converge on identical relational failure. This refinement paper specifies the mechanism underlying both: unidirectionality of emotions. Healthy emotional functioning is characterized by bidirectionality — every emotion capable of moving inward toward the self or outward toward others depending on context. Pathology occurs when this bidirectionality is lost and emotional pairs lock into fixed directional configurations. The psychopath's love locks inward; contempt locks outward. The codependent's love locks outward; shame locks inward. Both configurations destroy the bidirectionality required for authentic mutual relationship through opposite mechanisms that produce identical relational failure. Two developmental pathways to unidirectionality are proposed: gradual rigidification through repeated suppression over development, and threshold locking under acute neurobiological or environmental pressure. Empirical predictions and treatment implications are presented. This paper is the third in the EDT research program.