To use Lewis’s metaphor, you must let this more immature incarnation of your love “die” if it is to rise again and live. You must stick to your commitment to act and serve in love even when—no, especially when—you don’t feel much delight and attraction to your spouse. And the more you do that, slowly but surely, you will find your more ego-heavy attraction being transformed into a love that is more characterized by a humble, amazed reception and appreciation of the other person. The love you will grow into will be wiser, richer, deeper, less variable.