Tathreth with her lover, Arthod. Aaaaaaaand a lot of cliché. I know.
He lost his fiancée several years before Dagor Bragollach, and after—he loses everything and everyone. Family members, friends, people he faught with.
Tathreth is in a similar position, she doesn’t really know where her brothers are, what’s with her little sister; but she quited them far before the war.
Arthod’s first motivation to stay in Dorthonion is vengeance for his homeland, he’s fighting for those who died. Tathreth is fighting for those who live. She’s ready to fight again when she finds friends. And that’s why she becomes more and more alive and less isolated with every day around them. And why she becomes able to love and appreciate life again. Arthod, on the contrary, tends to isolate himself, to get rid of every desire exept to die in the battle. And Tathreth can’t save him from that. He can’t really protect her and still being with her, without breaking his oaths.
They live in the moment, because they can’t be both happy in another way. Only if there was no war. But if so, they’d never met each other.
Their wedding ceremony was a mixture of human and elven traditions. (In some Scandinavian or Germanic (?) tribes the custom was to gift the bride’s family oxens or horses. We’ve borrowed this tradition.) Obviously, there were no real animals to gift, and Arthod carved two toys out of wood: a horse and a cow.