The seven-year itch is a popular belief, sometimes quoted as having psychological backing, that happiness in a marriage or long-term romantic relationship declines after around seven years.

Is the 7 year itch true?

Is The Seven-Year Itch Actually A Real Thing? Its probs more common than you think. Look, its totally normal to feel a sense of stagnation—a seven-year itch, if you will—if youre in a long-term relationship or marriage. “The idea that youd feel this way at some innocuous point in time is complete BS,” says Engle.