The Ages old question - What is love? There are actually several types of love. There is love of ones spouse. There is brotherly/sisterly love. There is also love for our children.
Some people really have no understanding of Love. They are too deeply involved with their self interest. Some people mistake the temporary rush, of hormones, as love.
The true definition of love is found in the following link.
https://www.youtube.com/watch?v=PEH_x4DCaVY&feature=emb_imp_woyt