We have brought into our conception of marriage everything we once used to look for outside—the adoring gaze of romantic love, the mutual abandon of unbridled sex, the perfect balance of freedom and commitment. In such a blissful partnership, why would we ever stray? The evolution of committed relationships has brought us to a place where we believe infidelity shouldn’t happen, since all the reasons have been removed. And yet, it does. As much as we hopeless romantics hate to admit it, marriages based on attraction and love are often more fragile than marriages based on material motives.
