Infidelity is typically regarded as a moral transgression, but it cannot exist without a prior promise of exclusivity.
This prompts the question: why is exclusivity so highly valued in the first place? From a utilitarian perspective, does exclusivity, whether formalized through marriage or established in a less formal exclusive relationship, actually optimize well-being or happiness, or minimize suffering?
What, if anything, is inherently wrong with non-exclusivity from a utilitarian standpoint?
If non-exclusivity eliminates the possibility of infidelity, and given that infidelity is usually associated with psychological suffering, doesn't that present a compelling argument in favor of being non-exclusive?