Love can forbear, and Love can forgive... but Love can never be reconciled to an unlovely object... He can never therefore be reconciled to your sin, because sin itself is incapable of being altered; but He may be reconciled to your person, because that may be restored.

Traherne. Centuries of Meditation, II, 30.

When we fall in love with a woman, do we cease to care whether she is clean or dirty, fair or foul? Do we not rather then first begin to care? Does any woman regard it as a sign of love in a man that he neither knows nor cares how she is looking? Love may, indeed, love the beloved when her beauty is lost: but not because it is lost. Love may forgive all infirmities and love still in spite of them: but Love cannot cease to will their removal. Love is more sensitive than hatred itself to every blemish in the beloved; his "feeling is more soft and sensible than are the tender horns of cockled snails". Of all powers he forgives most; but he condones least: he is pleased with little, but demands all.

C.S.Lewis, The Problem of Pain, Divine Goodness “There is no safe investment. To love at all is to be vulnerable. Love anything, and your heart will certainly be wrung and possibly be broken. If you want to make sure of keeping it intact, you must give your heart to no one, not even to an animal. Wrap it carefully round with hobbies and little luxuries; avoid all entanglements; lock it up safe in the casket or coffin of your selfishness. But in that casket – safe, dark, motionless, airless – it will change. It will not be broken; it will become unbreakable, impenetrable, irredeemable. The alternative to tragedy, or at least to the risk of tragedy, is damnation. The only place outside Heaven where you can be perfectly safe from all the dangers and perturbations of love is Hell.” ― C.S. Lewis, The Four Loves