Marriage, like wealth, is a common issue that people care about and pay attention to, and is closely related to life and happiness. Now, predicting marriage is as difficult as predicting education, because many people in the past would not have the chance to study due to family difficulties, while modern people are open-minded and may not get married even if they live together for several years, but they are actually husband and wife, living together day and night, having children and becoming parents, which does not mean that there is no marriage. In addition, people in the past were conservative, while the rate of infidelity is relatively high nowadays.