A flash of pain entered his father's eyes, pain for all of those he had lost or would lose to mortality. But he did not blame his son for it - his son, who had his immortality and choice stolen; a choice that had been promised him by the Valar!
His eyes softened and he looked down, squeezing his son's hand. "You have nothing to be sorry for, Elladan. This is terrible; there is no way around that, and it is unfair. Your choice was promised to you by those far higher than we are, and for this island to be able to strip that from you is at once disturbing and cruel."
He paused, looking at the face of his son, seeing so much familiar in it, but also the face of his wife. Another who he had lost, although he would see her again soon.
"You have many years still to live. There is time to regain your choice, perhaps. We will try."