The love for a person which results from a valid act of choice is concentrated on the value of the person as such and makes us feel emotional love for the person as he or she really is, not for the person of our imagination… The strength of such a love emerges most clearly when the beloved person stumbles, when his or her weaknesses or even sins come into the open. One who truly loves does not then withdraw his love, but loves all the more, loves in full consciousness of the others shortcomings and faults…. For the person as such never loses it's essential value.
ST. POPE JOHN PAUL II Love and Responsibility