I have just read an article about a clear and definite definition about: what love is? There are two types of different notions about love these are the Chemical basis and the Psychological basis.
The first definiton refers to what Helen Fisher (anthropologist) divides the experience of love into three important stages: lust, attraction, and attachment.
In contrast to, the second concept refers to Psychologist Robert Sternberg formulated a triangular theory of love and argued that love has three different components: intimacy, commitment, and passion.
I always think about the real meaning of love and these two notions clear my mind.