In a new study released Friday that challenges contemporary notions of marital satisfaction, researchers at the University of Central Florida found that unions even between perfectly matched couples should only last around 15 years. Contrary to the traditional idea of until death do us part, our findings indicate that partners compatible in every way should nevertheless be married no longer than a decade and a half, said lead researcher Dr. Hank Grossman, adding that the physical and emotional intimacy of marriage is more or less fully depleted by the 15-year mark, even among two people who could not have found a better fit than each other. The data suggests that the most personally fulfilled, satisfied couplesthose who consider their partner their soulmatechoose to part ways before codependency or feelings of entrapment emerge. Its fair to say that any marriage lasting more than 15 years is almost certainly a product of serious dysfunction. Grossman added that 15 years was the uppermost limit, and that two people who were truly meant to be together may exhaust their relationship in half that time. 