I am so sorry I had to leave you, ion nín. Your adar has watched over you and your brother every night, and every night I have said a prayer to the Valar and to Ilúvatar for you both. I still do, for you both.
I have heard much of you, of your unceasing fight against evil and your family and your realm, I welcomed your wife to Aman and helped her heal, and yes, ion nín, I know of the choice your daughter has made, and I can tell you that the pain does lessen. I am so sorry that you had to know such sorrow in your life, losing three edair, your naneth, your twin brother, your wife, all four of your children. But Elladan and Elrohir will come, I feel it deep inside of me, and they will bring trunks of letters and many joyous stories of the reign of King Elessar and Queen Arwen of Gondor and Arnor.
I am so proud of you, Elrond my dear, dear son, and I will stay by your side and make sure that your heart becomes as whole as it can be once more. You have a naneth again, and this time I will not leave you- I swear it.
I love you so, so much.
And this I promise you: you will never have to say namárië to any of your family ever again.
A/N: I don't think Elwing would ever come to the conclusion that choosing a jewel over her sons was a bad idea, but I do think she regretted what she felt she had to do even as she jumped into the sea.