Here is a related quote I think you might find relevant. "People think a soul mate is your perfect fit, and that's what everyone wants. But a true soul mate is a mirror, the person who shows you everything that's holding you back, the person who brings you to your own attention so you can change you life. A true soul mate is probably the most important person you'll ever meet, because they tear down your walls and smack you awake. But to live with a soul mate forever? Nah. Too painful. Soul mates, they come into your life just to reveal another layer of yourself to you, and then they leave. And thank God for it." ~"Eat, Pray, Love" by Elizabeth Gilbert (p. 149)