'Your own eyes has betrayed you' - passage is so awesome!
After Aragorn meets Arwen for the first time in the gardens of the Last Homely House, he falls silent (serious, presumably more than before) and the change is so significant that Gilraen notices. Still, her son is not willing to share his thoughts with her to the point she presses him until he 'yields to her questions'.
We know that Gilraen is not at all pleased by the things she discovers that way. And she is not supportive in any way.
I imagine that would tell Aragorn that he needs to keep his thoughts all to himself even more. Just imagine - he shares his thoughts and worries with presumably one of his closest and most beloved people (his mother) and he gets shot down by her. It is not even that she is incorrect, it is about the way she approaches this.
So, after this conversation, he would be all the more cautious with Elrond. And then, this happens:
‘But Elrond saw many things and read many hearts. One day, therefore, before the fall of the year he called Aragorn to his chamber, and he said:
‘‘Aragorn, Arathorn’s son, Lord of the Dunedain, listen to me! A great doom awaits you, either to rise above the height of all your fathers since the days of Elendil, or to fall into darkness with all that is left of your kin. Many years of trial lie before you. You shall neither have wife, nor bind any woman to you in troth, until your time comes and you are found worthy of it.’’
‘Then Aragorn was troubled, and he said: ‘‘Can it be that my mother has spoken of this?’’
‘ ‘‘No indeed,’’ said Elrond. ‘‘Your own eyes have betrayed you" . (The tale of Aragorn and Arwen)
The more I think about the details of this passage ( put in bold), the more I appreciate what Elrond does here (apart from using the foresight, of course). For one thing, he probably can read minds and hearts as well as Galadriel - and we know that she does that - for example to the Fellowship upon their arriving to Caras Galadhon). Then, we are talking about the child he has helped to raise, knows him very well and even, to some point, claims him as his own. So Elrond uses his gift for the benefit of Aragorn - not to force any confession out of him, not to intimidate him, to be, as is in his nature, kind and gentle. Even if he cannot just brush it off (as the matter is a serious one), he still approaches Aragorn as kindly as possible about it, given the circumstances.
And I love he can read Aragorn through his eyes.