According to robert sternberg's triangular model of love, involves closeness and caring—championing the interests of the loved one, even if it entails sacrificing one's own.

The triangular model of love is Sternberg's theory of love. The theory says that all of our different positive emotions are the result of different combinations of intimacy, passion, and decision/commitment. According to Robert Sternberg's triangular model of love, intimacy involves closeness and caring—championing the interests of the loved one, even if it entails sacrificing one's own.

It's considered to be association or connection