(In intimate relationships, we always face such a problem, that is, the shelf life of love. Some people think it is three months, some people think it is one year, three years, and some people think it is what we often call "the 7-year itch & ;quot;No matter how deep the relationship between husband and wife is, when the seven-year itch comes, passion and love will cease to exist, and only family affection will be replaced. After a long time, there will definitely be problems in the relationship. In order to keep your previous enthusiasm and freshness sense, some suggestions have been compiled in the course.)