Quote:As told in "The Tale of Aragorn and Arwen",[1] Aragorn in his twentieth year met Arwen for the first time in Rivendell, where he lived under Elrond's protection. Arwen, then over 2,700 years old, had recently returned to her father's home after living for a while with her grandmother Lady Galadriel in Lórien. Aragorn fell in love with Arwen at first sight. Some thirty years later, the two were reunited in Lórien. Arwen reciprocated Aragorn's love, and on the mound of Cerin Amroth they committed themselves to marry one another.
http://en.wikipedia.org/wiki/Arwen