The Character Development of Arwen

[Magician of Nathar]

I was just wondering about the character of Arwen in the books. Somehow it seems to me this character is so poorly developed it's not even like Tolkien. Did Tolkien only remembered to give Aragorn a gilfriend/wife at the end of the book? Or does he think a feminine character really won't fit into the novel? Even in the Tale of Aragorn and Arwen it's not very specific. It just feels kinda empty. Don't get me wrong, that is my favourite part of the entire appendix. The ending is especially tear jerking. But the beginning part just doesn't feel right, you can't see how they fall in love. Maybe Tolkien was just not the romance novel. But then again there is the story of Eowyn and Faramir which is perfectly romantic. So what's the deal with Arwen?

Sorry I think I am rambling again.....