Unilateral divorce has decreased the bargaining power of the person who wants the marriage to last and has not engaged in behavior that meets the legal definition of fault. On the other hand, it has increased the bargaining power of the person who is willing to leave.

Especially around Valentine's Day, it's easy to find advice about sustaining a successful marriage, with suggestions for 'date nights' and romantic dinners for two. But as we spend more and more of our lives outside marriage, it's equally important to cultivate the skills of successful singlehood.

When liberals dismiss all Trump supporters as racists, this only fuels their anger.

Especially around Valentine's Day, it's easy to find advice about sustaining a successful marriage, with suggestions for 'date nights' and romantic dinners for two. But as we spend more and more of our lives outside marriage, it's equally important to cultivate the skills of successful singlehood.

There's nothing wrong with celebrating the good things in our past. But memories, like witnesses, do not always tell the truth, the whole truth, and nothing but the truth. We need to cross-examine them, recognizing and accepting the inconsistencies and gaps in those that make us proud and happy as well as those that cause us pain.

In personal life, the warm glow of nostalgia amplifies good memories and minimizes bad ones about experiences and relationships, encouraging us to revisit and renew our ties with friends and family. It always involves a little harmless self-deception, like forgetting the pain of childbirth.

I've had the kind of complex life I write about. I was a single mother for 12 years. I'd been engaged. The wedding fell through. I then discovered I was pregnant and opted to have the child on my own. I was a professor. I was in my mid-30s. I could manage it financially.

As Americans lose the wider face-to-face ties that build social trust, they become more dependent on romantic relationships for intimacy and deep communication and more vulnerable to isolation if a relationship breaks down.

Investing in living-wage jobs and reducing the inequities between local school districts would give young people more, not less, incentive to postpone childbearing and more possibilities for independence.

There is no denying that we have made great progress toward gender equality.

Deciding together to have a child and sharing in child-rearing do not immunize a marriage. Indeed, collaborative couples can face other problems. They often embark on such an intense style of parenting that they end up paying less attention to each other.

Contrary to myth, 'The Feminine Mystique' and feminism did not represent the beginning of the decline of the stay-at-home mother but a turning point that led to much stronger legal rights and 'working conditions' for her.

It no longer makes sense to see singlehood and marriage as two distinct and stable social categories that should be accorded different legal rights and social esteem.

Whatever their relative valuation of the single and married states, most societies in history made sharp distinctions between those who married and those who remained single: They were seen as mutually exclusive ways of life, with different legal rights and social obligations.

Marriage is generally based on more equality and deeper friendship than in the past, but even so, it is hard for it to compensate for the way that work has devoured time once spent cultivating friendships.

Giving married women an independent legal existence did not destroy heterosexual marriage. And allowing husbands and wives to construct their marriages around reciprocal duties and negotiated roles - where a wife can choose to be the main breadwinner and a husband can stay home with the children - was an immense boon to many couples.

The closer we get to achieving equality of opportunity between the sexes, the more clearly we can see that the next major obstacle to improving the well-being of most men and women is the growing socioeconomic inequality within each sex.