The three basic elements that make up love are sex, ideals and responsibility.

Introduction to love:

Love is a complex phenomenon that combines physiology, psychology and subjective emotions affected by social factors. Different eras, cultures, disciplines and scholars have different views on love. Understand and define. The love triangle theory holds that love consists of three components: intimacy, passion, and commitment. John Allen Lee, a professor of psychology at the University of Toronto, describes love in terms of the three primary colors and believes that the three forms of love are passion, play and friendship.

People will have different emotions due to individual differences such as attachment style, love beliefs, age and gender. From passionate love to introspection, love itself can be divided into different stages.

As for where love comes from, there are different opinions on evolution theory, learning theory, sociology theory, spiritual love theory, biochemistry theory, dependence theory, etc. Biological studies believe that biological factors such as dopamine and oxytocin regulate love, and brain areas involved in happiness and reward, such as the caudate nucleus and putamen, are related to the occurrence of love.

Many psychologists believe that the emergence of love is in line with the laws of human survival and evolution, that is, people with this kind of emotion can get more warmth and protection and survive better. There are also psychologists who believe that love is related to defects or perfection of personality. Cross-cultural research on the concept of love has confirmed that the differences between collectivistic and individualistic cultures will have an impact on the development of intimate relationships.

Love in Medieval Europe:

The concept of love in the 12th century was influenced by economics, politics and family structure. In medieval Europe, out of the pursuit of wealth and power, marriages for children of nobles were often arranged to heirs from other kingdoms seeking marriage alliances. Therefore, love is no longer connected with marriage, but is conceptualized as a psychological admiration that can exist even outside marriage or between same-sex people. It is spiritual and romantic.

As the form of kingdom and royal family was abolished after the outbreak of the Revolution, wealth and power were no longer exclusive to the nobility, the role of love began to change, and marriage was no longer just a political and economic arrangement.

Love in Colonial America:

Love in Colonial America was similar to the Middle Ages in that marriage was viewed as a transaction between high-status families. The suitor expresses his admiration for his daughter to the girl's father, who often negotiates the dowry amount with the boy's family to increase the boy's incentive to marry the girl.

But love is not completely lacking. If a girl does not want to marry the person chosen by her father, her father may refuse to pay the dowry, or she may persuade her father to tell the suitor that she is not interested.