 Arwen reciprocated Aragorn's love, and on the mound of Cerin Amroth they committed themselves to marry each other.In making that choice, Arwen gave up the Elvish immortality available to her as a daughter of Elrond and agreed to remain in Middle-earth instead of traveling to the Undying Lands.Arwen first appears in the text of "The Lord of the Rings" in Rivendell, shortly after Frodo Baggins wakes in the House of Elrond