So....by that logic lesbian infidelity rates should be infinitesimal as compared to any relationship constructs that include men? Conventional beliefs used to affirm women craved monogamy when we know today it is typically women that are most and first bored and unsatisfied with the construct. Conventional belief was confident women were not as motivated as men to cheat, only because they didn't necessarily have the same reasons for doing so, fully ignoring that unlike men, women have sex, marry, and cheat for far more varied reasons, they generally have heightened social privileges which facilitate both more opportunities for infidelity and its nondisclosure, and are much more incentivized to keep it hidden given the societal and family implications.
Women are not naturally motivated to upset a family structure, we naively assumed that meant they simply wouldn't cheat, DNA seems to indicate otherwise, and even that only covers the women whom cheated for biological acquisition.
That old saying about a woman needing 4 animals in her life, A mink on her shoulder, a Jaguar in the garage, a tiger in the bed, and a jackass to pay for it all? That's much more indicative of a woman's societally unrestricted mating and dating strategy.