Romantic love is mental illness. But it's a pleasurable one. It's a drug. It distorts reality, and that's the point of it. It would be impossible to fall in love with someone that you really saw. The second you meet someone that you're going to fall in love with you deliberately become a moron. You do this in order to fall in love, because it would be impossible to fall in love with any human being if you actually saw them for what they are.