Sonnet 5's selection of "Codependency" as Topic 10 is a structurally significant choice. The Wellbeing Compass topics form a progression: clinical diagnoses (Bipolar, BPD, Psychosis) → life events and losses (Infertility, Suicide Loss, Divorce, Job Loss, Pet Loss) → collective/relational experiences (Climate Anxiety, Codependency). Codependency uniquely closes the arc because: (1) It's the only inherently relational topic — it describes a pattern BETWEEN people, not a condition WITHIN a person; (2) It transforms the Compass from a collection of individual struggles into a map of human interconnection; (3) It positions the final topic as a bridge — codependency recovery involves learning the very skills (boundary-setting, self-differentiation) that nearly all other topics indirectly require. If Bipolar opened the Compass with "this is what's happening inside me," Codependency closes it with "this is what's happening between us." The arc is complete.