Human beings are story-telling creatures. Stories help us to understand our world, to find our place in it and sometimes our purpose, too. So, the distinctions we draw between fact and fiction are rarely as absolute as we might wish them to be.
As a "bookie," I'm constantly reading. When I need an answer, I turn to my fictional favorites. Today, I look to books for answers on the most written-about topic in the history of mankind, love itself.