I dont think this song was intended for twilight but for new moon instead. Yes she wanted to become a vampire but if you think about New Moon after she's been broken by Edward and Jacob. She's made her choice and that choice is Edward. She loves him and wants to marry him! They go to his house and vote and all if she should become a vampire even though its inevitable anyways with the volturi. He still fears for her soul even though she tells him that her soul is his to have from the very beginning.
I dont think this song was intended for twilight but for new moon instead. Yes she wanted to become a vampire but if you think about New Moon after she's been broken by Edward and Jacob. She's made her choice and that choice is Edward. She loves him and wants to marry him! They go to his house and vote and all if she should become a vampire even though its inevitable anyways with the volturi. He still fears for her soul even though she tells him that her soul is his to have from the very beginning.