The Indomitable Queen

This is my rendition of Galla Placidia. It is also a high fantasy, historical story, and has elements of time travel. This is a drafting edit, and will be updated erratically and in random order, and will be completely overhauled from front to back, probably several times.
If you've made it this far, thanks. And as a gift, here's the good part.
There are two worlds aligned in this tale, one ours, and one not, but both as real and tangible as the other, to those who live in them.
Our world is the same, the beautiful Earth that we have trodden, worked, lived and loved upon for millennia.
The second world exists just beyond this. And the people on it have lived, worked and loved it much the same as we. But the occupants of the second world aren't human. They're ethereal, tall, and heart-wrenchingly beautiful. They're the People of Eternal Life.
The Elves.
Long, long, ago, when the earth we know was just forming, beginning to stretch, to solidify into strength, the two worlds did not walk separate paths, kept from touching by the thin veil that keeps them from colliding together again, and elf and human worked and loved in unison.
But the elven people were hardier, strong, and eternal. They loved, and those who chose to live with the frail by comparison humans could not bear the loss when their loves would die.
So during this time of the earth stretching, forming, and elf fell in love with a man.
She was powerful, and controlled as many of the elves did, the ability to walk time, as well as the elements, earth, air, fire, water, an health But this emakuneen was also capable of another. She could use them simultaneously. And she made her love immortal.
So many of the elves learned to walk time with their loves, and brought them to her. And so it was that any elf who fell in love with human came with their mortal to be made eternal, for they thought there was no consequence of it.
The Elves are rarely wrong.
But when they are, the worlds parallel must suffer.