'Love that hankers after what is merely pleasing and repeatable in a person will do just that: repeat itself with whoever possesses those pleasing qualities. In this case, the inherent "adventurousness" of love - the desire for expansion, growth, and new discoveries - will lead a person to take his delight in wandering from person to person. On the other hand, love that reaches the unrepeatable mystery of the other person is a love that's truly that: unrepeatable, stable, sure. It's an inexhaustible treasure that can't possibly be found elsewhere. In this case, love's inherent adventurousness finds its delight not in wandering from person to person, but from wandering ever more deeply into the heart of the one and only beloved.'
Christopher West, Fill These Hearts, p.154.