Do you believe in true love? Or do you believe it is a concept that we have been taught to believe in since childhood, seeing it in movies all the time, but that it doesn't really exist? Well according to Chapter 6: Love and attachment from the book "The Happiness Hypothesis" by Jonathan Haldt there are 2 kinds of love:
1-Companionate love: the kind of love that grows slowly over the years as people get attached and they take care of each other. This is the love that an old couple shares; it is a firm commitment to each other. It can never have the intensity of passionate love, but it can last a lifetime.
2- Passionate love: when you "fall head over heels" for someone. Surprisingly, passionate love is considered a drug because its symptoms can compare to those of heroin and cocaine! It causes the release of dopamine, which is released when something makes you feel REALLY good. By raising the levels of dopamine artificially, there is risk of addiction. As your brain adjusts to the high levels of dopamine, you become tolerant to the drug. If the drug is stopped, you will have withdrawal symptoms. Now I get why you feel so good when you fall in love and so terribly bad when you break up. Its like you were addicted to a drug and out of nowhere you suddenly stopped.
So I think its safe to say that Kesha wasn't crazy or wrong when she sang "you're love is my drug". And Walt Disney, and basically all of Hollywood now, is not making us believe in something that doesn't exist, true love, it does exist, its just not passion that lasts forever.