" First, you begin to find out how selfish this wonderful person is. Second, you discover that the wonderful person has been going through a similar experience and he or she begins to tell you how selfish you are. And third, though you acknowledge it in part, you conclude that your spouse’s selfishness is more problematic than your own. This is especially true if you feel that you’ve had a hard life and have experienced a lot of hurt. "

― Timothy J. Keller , The Meaning of Marriage: Facing the Complexities of Commitment with the Wisdom of God