We asked our friends, all of whom were frank and honest. Some of them said that it was possible to find a way through, especially as their children got older. Others said that all the weakest points of our relationship would be laid bare. Others, still, said that it was a euphoric experience, if only you surrendered yourself to it. And yet, really, these thoughtful offerings meant nothing, because it was impossible, ultimately, to compare one life to another, and we always ended up essentially in the same place where we had begun.