Wondering about the Elves...

[Elendur]

And Arwen gave up her immortality because she didn't want to live forever after Aragorn had died, not because she had to to marry him.

I think that is wrong. Arwen was given the choice of staying in Middle Earth or going with her father to sail over the seas. She chose to stay in Middle Earth for Aragorn. Therefore she becamse mortal.

I find this topic interesting though. When Luthien was with Beren she decided to marry him. Therefore she had to become mortal. But when Idril married Tuor she did not have to become mortal. Why? I have no idea.

But I think Arwen lies in a category out of these two in terms of her choice. She did not become mortal because she married Aragorn, she became mortal because of her decision to stay in Middle Earth.

So, NotHomeYet I dont think there is a difference between a half-elven and an elven person marrying a mortal. But I cant explain why Luthien had to become mortal to marry Beren, yet Idril did not have to become mortal to marry Tuor.