This is utterly glorious! It gets closer than anything else I've seen to how I feel about Finrod and Andreth's friendship / bit-more-than-friendship-maybe. The Athrabeth seems to me to be one of the most intimate and intense things Tolkien ever wrote and there are so many layers and subtexts to the relationship that Finrod and Andreth have - they are friends, they are almost-siblings-in-law, they are...IMO there is a certain frisson between them as well. And they clearly, obviously, love each other. I think you get it so right here - the enduring but dreamlike love Andreth has for Aegnor, compared to the reality of what she and Finrod feel about each other, and the hope that she will see them both again, ultimately.