According to the suffocation model of marriage in America, these changes have had two major consequences for marital quality, one negative and one positive. The negative consequence is that, as Americans have increasingly looked to their marriage to help them meet idiosyncratic, self-expressive needs, the proportion of marriages that fall short of their expectations has grown, which has increased rates of marital dissatisfaction. The positive consequence is that those marriages that succeed in meeting these needs are particularly fulfilling, more so than the best marriages in earlier eras. In tandem, these two consequences have pushed marriage toward an all-or-nothing state.