Romance could get complicated for monogamous people. Polyamorous partners would negotiate new agreements about duplicates. Marriage as an institution would pr

Romance could get complicated for monogamous people. Polyamorous partners would negotiate new agreements about duplicates. Marriage as an institution would probably dissolve due to impracticality; it would be equivalent to a series of divorces and remarriages with each duplication, and two-partners-per-marriage would be a weird constraint. Resource constraints are certainly an issue; the fairest way seems like pre-allocating a subset of resources to each duplicate who in turn can do the same. Societal restrictions on creating a duplicate with too few resources would prevent effective slavery or abject poverty.