Back in 1979, Ted L. Huston, a researcher on how intimate relationships change over time, studied the relationships of couples for 13 years to see how the length of their relationships before marriage affected their relationship after. The study, called the PAIR Project, involved 168 marriages and had some interesting findings. Couples who dated for 25 months had the happiest marriages. On the other hand, couples who dated for three years before getting married had unhappy marriages while those
