Vampires and mirrors...

Well, it's just a dream and in most legends, vampires don't show up in mirrors and I think it was supposed to add to the scariness of the dream (for Bella, I mean)

It's just her dream. If I remember correctly, the book describes her dream with Bella looking into the mirror, seeing herself as an older woman.

The reflection of the mirror represents Bella's fear of Edward not being with her when she is older. Therefore, he doesn't show up in the mirror with the older Bella.

Young Bella with Edward looking into the mirror is "what was happening in the present." She's young for now, and Edward is with her, but in the future, she fears he won't be interested in her anymore.

The absence of his reflection doesn't have anything to do with the vampire myth. It has to do with Bella's fear.

Yep I agree...it was just part of her dream.

Alittle off the subject but I watched a movie...cant remember what it was called...but the vampire in it said that most of the signs that proves someone one was vampire...were made up by vampires so that the humans wouldnt suspect them...like you were a vampire if you didnt have a reflection...like you were a vampire if crosses affected you...like you were a vampire if you had to sleep in a coffin...all made up by vampires. Smart vampires...love that! lol

its just Bella forgetting that Edward shows in mirrors cuz she lovees him very much