A recent article in the New York Times alludes to a recent trend in social science research towards studying committed heterosexual couples for insights into what makes marriages healthy.
“A growing body of evidence shows that same-sex couples have a great deal to teach everyone else about marriage and relationships. Most studies show surprisingly few differences between committed gay couples and committed straight couples, but the differences that do emerge have shed light on the kinds of conflicts that can endanger heterosexual relationships.
The findings offer hope that some of the most vexing problems are not necessarily entrenched in deep-rooted biological differences between men and women. And that, in turn, offers hope that the problems can be solved.”
Although this article deals mostly with the findings from psychologists, many well-documented sociological trends are also discussed in this piece.