Next victim?

I just finished speeding through Twilight, by Stephanie Meyer, and can not recommend it. It is the new craze among high school girls especially, with a movie and everything. A 17 year old high school girl in a new town falls for a guy who happens to be a vampire. But wait it is supposed to be ok, beause he and his group only hunt animals, and he is really good looking...
The thing I couldn't get over wasn't the simple passivity of the main character, but her active desire to become a victim. I kept picturing the poor girls you hear about on the news, who disappear with much older men they met on the internet. In fact I could imagine the dialogue from the book appearing in IMs- You shouldn't want to be with me, everyone will be against us being together, etc.
Yesterday I read about a 15 yo girl from England who left with a 49 yo man she met on the internet, to France. Tips and closed circuit TV images helped locate them, and she has now been returned home. Common enough story (sadly), but the British paper actually showed the cctv images, and they were disturbing, in that they looked SO normal. This girl obviously went willingly with this man, he probably told her they shouldn't be together, or else why flee the country?
So why would teen girls eat this book up with a spoon? Can't we embrace the opportunities life has to offer, rather than act helpless; learn that true love is one that lifts you up, not puts you at risk?
Even on the very last page of the book the main charater seems to dare, well really invite the others to destroy her. But as I understand twilight is a series, I suppose they did not. Shame. One volume of this was enough for me.