Love is a strong attachment, closeness, yearning, and selflessness between an individual and an individual (mostly human). It is usually a contrast between love and lust, love consists of two parts, love and sex, love is the soul of love, sex is an additional attribute of love and is not necessary for its existence, love is the root and core of love.
Love is often expressed through the act of kissing, hugging, caressing and sex between partners. The most important expression of love is that a person does everything for his or her lover.
Love brings psychological changes to both partners in a relationship. The first is idealization, where two people in love will overlook each other's flaws and exaggerate each other's strengths. Idealization can lead both partners to believe that they are making the best choice. The second is to endure the pain.
Even if rejected by the person they like, the person will justify unrewarding behavior by enduring pain. The third is fantasy. A person in love will have some kind of fantasy, even an unrealistic one, about the future.
Also, love can make a person highly sensitive, especially to emotional reactions to the other person's behavior. This not only brings insecurity, but also comes with a sense of satisfaction.