Some people are in a relationship so they are not alone.
Others, for the magic.
What happens when you know what you're in it for? Are we satisfied if it is to fill our loneliness? If the two are content with each other's company, is that not enough. Do we need the magic.
Then there's the search for the magic. Is this relationship magical, or am I lonely. And the constant need to find out begins. Do we want love, or do we want love.