But if your hypothetical spouse has friends, you have to move near those friends as well. And if their hypothetical spouses also friends, those also have to be

But if your hypothetical spouse has friends, you have to move near those friends as well. And if their hypothetical spouses also friends, those also have to be nearby. And let's not get into hypothetical children, their friends and the parents of those friends. I've tried but it's just impossible to make this sort of idea work unless you're terminally solipsistic or everyone you care about already comes from a very small social circle. The second-order effects kill it. In my view this illustrates one of the great advantages of pair bonding: You only have to coordinate your decisions with one person.