the way you've told this story such that I can see it happening in front of me, with no need for villainy and vamps, and just human interaction, and it's the love story, the simple, yet complex love story that is the focus, and how everyone reacts to it.
The beauty of this story isn't the length, or the characters, but the way you've written it. all your beliefs about this couple, about this story is so stark, and evident, that it makes your reader believe in this love too. It makes a sould ache, because when you were writing it, it seemed that that is what you felt. you made me, as a reader, feel what you were writing. it's just amazing.
you need to write more, because this, is something that you have to keep doing. you cannot keep these ideas and characters locked in your head. it'd be unfair to us!