"How could she feel nostalgia when he was right in front of her? How can you suffer from the absence of a person who is present? You can suffer nostalgia in the presence of the beloved if you glimpse a future where the beloved is no more."

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At last, Lady Evenstar, fairest in this world, and most beloved, my world is fading. Lo! we have gathered, and we have spent, and now the time of payment draws near." 'Arwen knew well what he intended, and long had foreseen it; nonetheless she was overborne by her grief. "Would you then, lord, before your time leave your people that live by your word?" she said.

— J. R. R. Tolkien