We are surrounded with ads and shows that confuse lust with love. I have fallen out of love with you. We say that we love ice cream or the color blue. The love that God speaks of in the Bible is not just an emotion. It is not just a feeling that is contingent on whether the other person is acting in the manner that pleases us.
True love is unconditional.
The Word of God defines love for us from Genesis to Revelation. He created us in his image. Love is an action. If I speak in the tongues of men and of angels, but have not love, I am only a resounding gong or a clanging cymbal. If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but have not love, I am nothing.