The seven-year itch is a term that refers to a supposed tendency for people to become restless or dissatisfied in their relationships after being together for seven years. However, there are several other phrases that can be used to describe this phenomenon. One such phrase is the "mid-marriage crisis," which refers to a time when couples may question the longevity and success of their marriage. The term "relationship ruts" also suggests a similar period of boredom or stagnation in a couple's romantic life. Finally, the phrase "marital malaise" denotes a sense of discomfort or discontentment that can arise in long-term relationships.