When the psychologists added questions about things like relationship satisfaction and how many times the research subjects had thoughts about separating to the mix, they could predict which marriages would end in divorce 93% of the time.
The figure, which comes from a 14-year study of 79 couples living across the US Midwest (21 of whom divorced during the study period), was so striking it spurned the researchers to label the four behaviors “the four horsemen of the apocalypse.”
