An interesting study has shown that couples who have "serious" incorrect perceptions of each other's happiness are 12% more likely to divorce.
But here's where it gets interesting. Couples who had "incorrect perceptions" of each other's happiness — meaning they thought their partners were either happier or less happy than they suspected — had a higher rate of divorce overall (8.6%). And, those with "seriously incorrect perceptions" — meaning they were at least 2 points off when guessing how happy their partner would be after separating — had a much higher divorce rate (around 12%).
http://uk.businessinsider.com/2-questions-can-predict-divorce-2015-2?r=US
