What Edward loves of Bella personality for one thing is that her attitude she never changes her mind once is made, her clumsiness, awerness of everything and everyone, her warm heart towards others, and the fact that if she needs to say something she comes out and says it. He sees that she is and old soul ( like her mother said) for the reason that she takes more responsability than her peers would ever do at her age. Also I think he also likes the fact that she surprises him all the time especially because he can't read her mind, and her beauty also is another thing that he loves. So what i'm saying is it's not just her blood or body that he loves,is her completely Bella Swan not just aroma and lust. He loves eveything about her so much that in his mind she's woth living and the wait.