“…36 This helps prevent infidelity, perceived to be a violation of commitment and trust. 18,37 When entering a new Sexual (non-)monogamy and relationship satisfaction 5 relationship, individuals become more sociosexually restricted, 38 which is associated with lesser likelihood of face-to-face and online extradyadic sex 12 and with greater relationship quality. 39 Presumably individuals focus on their romantic relationship, rather than their predisposition for casual sex, and decide not to engage in infidelity 40 Still, infidelity sometimes occur.…”