A question: shouldn't Edainion have one of those Ar(a) names? If not, we need a reason why.
There is a reason why, but, like many of the questions raised by the story, you'll have to wait for the answer. You'll notice about 3.5 arcs in this story. We've just completed one arc, and this and the last couple chapters are busy setting up the tension of unanswered issues and questions for the next arc.
You need to adjust the quotemarks on the bedtime story she tells Edainion. Lose the endquote at the end of each paragraph, until the very end.
That just seems so, well, odd, to me, but you're exactly right. What a bizarre little bit of grammar funkiness.
And Roheryn--Tolkien says he was called so because he was a gift from Arwen.
*sigh* Yeah, unfortunately I forgot about this until another astute reader brought it to my attention. I've been struggling with what to do about. Actually, I think I'm going to post more about it on my story forum, cuz, if you're willing, I could use some feedback/help on it.