This is what Gordon B. Hinckley as said about it..."true love is not so much a matter of romance as it is a matter of anxious concern for the well-being of one's companion."
He also said "love is the very essence of life. It is the pot of gold at the end of the rainbow. Yet it is more than the end of the rainbow. Love is the security for which children weep, the yearning of youth, the adhesive that binds marriage, and the lubricant that prevents devastating friction in the home; it is the peace of old age, the sunlight of hope shining through death."
Thou shalt live together in love (D&C 42:45)