yes i do find her annoying her whole life pretty much revolves around edward when he does leave, she goes into depression and she leaves all her フレンズ for edward
I am a big ファン of Bella, but yes, I have to admit she was greatly irritating in New Moon.
I stopped 読書 the damn book for two weeks because of her constant depressive attitude...
But on the other hand...I'd have to stop and think about one thing; I was never in 愛 as Bella was. So I don't really know what to expect to feel about your loved one, including if he leaves you.