True love is passionate love that never fades; if you are in true love, you should marry that person; if love ends, you should leave that person because it was not true love; and if you can find the right person, you will have true love forever. You might not believe this myth yourself, particularly if you are older than thirty; but many young people in Western nations are raised on it, and it acts as an ideal that they unconsciously carry with them even if they scoff at it. … But if true love is defined as eternal passion, it is biologically impossible. … To see this, and to save the dignity of love, you have to understand the difference between two kinds of love: passionate and companionate.
Jonathan Haidt in The Happiness Hypothesis
Song: “(Where Do I Begin) Love Story (Away Team Mix)” by Shirley Bassey