What Elrond doesn't know is that Elladan and Elrohir have already made their choice. Did so centuries before, in fact, when they met the elf whose faer called to their own.
All those years they were out on so-called 'errantry' they were, in fact, spending time with their beloved husband. Why do they not, then, put their father's mind to rest? Why have they not introduced him to their family?
The problem is... their husband is called Maglor.