Narn Arwen ah Aragorn

She saw at once that he lived, but she knew not what he was, one of the fishermen of Rómenna, or some lost voyager from Tol Eressëa, or else a token of some great evil to come; and she hesitated long over him, unsure whether to aid him or put him back out to sea. Till at last he half-woke, and saw above him a tall woman in a rich gown of blue and silver, and her long dark hair was bound with the same silver and shot through with it, and all about her the silver fog was winding. And he took her for an unhoused shade, and cried, “Have I come to Aman at last?”

Aragorn and Arwen, if Elrond and Elros had made different choices.