What does the seven-year itch mean?

This entry describes the seven-year itch as a phrase people use for restlessness or doubt around the middle of a marriage's first decade. It notes that the number is a saying, not a rule, and that a year on the calendar does not by itself create an affair, a boredom, or a reason to leave.

What this entry does not do

It does not predict what happens in a seventh year, and it does not replace the entry on falling out of love.