QUOTE : Undependable people, in contrast, provide erratically and inflict heavy costs on their mates. In a study of newlywed couples, my lab found that emotionally unstable men were especially costly to women. They tended to be self-centered, to monopolize shared resources, and to be possessive, monopolizing much of the time of their wives. These men showed higher-than-average sexual jealousy, becoming enraged when their wives even talked with someone else, as well as dependency: they would insist that their mates provide for all of their needs. With a tendency to being abusive, both verbally and physically, they also displayed inconsiderateness, such as by failing to show up on time. Emotionally unstable men were also moodier than their more stable counterparts, sometimes crying after minor setbacks. Suggesting a further diversion of their time and resources was their tendency to have more affairs than average.34 All of these costs indicate that emotionally unstable mates will absorb their partner’s time and resources, divert their own time and resources elsewhere, and fail to channel resources consistently over time. Dependability and stability are personal qualities that signal increased likelihood that a woman’s resources will not be drained by the man.