Maybe I was overthinking things as I stood in front of my cramped closet, considering my options. But this keenly felt need not only to find something appropriate to wear but to be appropriate, and at the same time a little rebellious, reminded me of all the bargaining we do with ourselves about monogamy. I stared at blouses and trousers and dresses and thought of the big concessions we make and the little ones, and of the greatest trade-off of all, in which we surrender complete, dizzying sexual autonomy and self-determination for the security of the dyad.