Don't Forget

While I'm thinking about it, Demi Lovato's video "Don't Forget," currently getting lots of play on the Disney Channel, will always remind me of New Moon. I read that Demi has expressed a willingness to record music for the movie. I wondered if she was thinking about Bella and Edward when she co-wrote this.
This is the full version. The one I'm accustomed to watching is much shorter.