: RSS has it right! Elrond was no longer in the position where he was able to run out his banner and sally forth with a host of hard nut Noldor and lesser elves. The fact that he adopted Aragorn (only the second ever adoption of a man by and elf, after Thingol's adoption of Turin, ever) speaks for itself. He did what he was able to do - preserve the line of the heir's of Isildur, until the time was right for the Kingdom(s) to be reclaimed.

: Also I do not believe he felt bitterness and any sort of ill toward Aragorn, for taking away Arwen. The one thing a father wishes above all for his daughter to to find love for a man who returns such love. This Arwen and Aragorn did, which is particularly evident should you read, as I am sure you all have, the appendicies of LotR.

: Elrond may have felt sadness that he would not longer see his daughter, but bitterness and ill-will. I think not!

:
: Padster

I agree with the analyses and would only add that at this point, Elrond really is 'not of this world'. His heart is in the west & he longs to be there. The centuries have worn away for him just as for all the elves & he was ready to 'head home' and cares little about the fate of Middle Earth, but still sees to his duty to stand against Sauron as he can. Look how soon (from an elf's perspective) after he raises Aragorn he leaves Middle Earth.

- Steve S