“…Many studies conceptualize social relationships as normatively defined roles ( Merton, 1957 ). Across a range of cultural contexts, well-being is most strongly associated with marriage (and, to a lesser extent, unmarried cohabitation and strength of partnership) (e.g., Wade and Pevalin, 2004 ; Hewitt et al, 2012 ; Tilburg and van der Pas, 2015 ; Rapp and Stauder, 2019 ; Yang and Park, 2019 ; Still, 2020 ; Zhang and Axinn, 2021 ; cf. Musick and Bumpass, 2012 ; Nicolini et al, 2021 ).…”