Tim Kreider said this quote

What someone’s lies reveal about them (aspirations to being an accomplished writer, fantasies of an exotic history and a cosmopolitan family) are always sadder than the fact of the lies themselves. These inventions illuminate the negative spaces of someone’s self-image, their vanity and insecurities and most childish wishes, as we can infer from warped starlight the presence of a far vaster mass of dark matter.