The rise of “walkaway wives” is a phenomenon that everyone from statisticians to lawyers has noticed. In recent years, around 63 percent of divorce petitions have been filed by wives, according to Stowe Family Law, and research released late last year by NOON for Mishcon de Reya and Julius Baer International found that nearly 56 percent of midlife women would end a marriage simply because they felt unhappy. The survey of 2,000 midlife women also revealed some other significan