“Coche’s answer was pretty simple: people in long term relationships tend to lose their curiosity for each other. Not necessarily in an unkind way; they just become convinced they know each other better than they do. They don’t listen because they think they already know what the other person will say.

Coche gave the example of spouses who answer questions or make decisions for each other. They might also give gifts that miss the mark, resulting in disappointment and hurt feelings. Parents can make the same sorts of mistakes, assuming they know what their children like or don’t like and what they would or would not do.”