I'm about to make a very unpopular comparison, one that surely will have some fans trying to revoke my own Whedon fandom: Bella, Buffy, and the bloodsuckers from Twilight and Buffy aren't all that different.
I say this as someone who only left her house once during the seven seasons of Buffy night, who watched each episode countless times, and amassed a huge pile of memorabilia. I say this as someone who has read Stephenie Meyers' series and enjoyed it for the ways it reflected and improved on my own fluffy YA reading (The Vampire Diaries), and knocked it for the Mormon-esque message underneath.
I haven't ignored my fandom; I just can't help but see the myriad of similarities between the two characters, ones that make Buffy owning Edward seem quite hypocritical. The power behind the slayer comes from Joss Whedon and the themes explored throughout her story -- not from the character herself. Strip away the story arcs and implied messages, and you've got a troubled woman who is no better off than Bella.