Bella's parents never split up, Renee never followed her dreams and escaped Forks. Thus, Bella has grown up in a constantly overcast small town with a police chief father and a mother who's checked out emotionally.  She's still the straight A student whose never met a boy who peaked her interest but she did find other ways to escape her suffocating life. 

Edward and the Cullens move back to Forks as they did previous to the first novel, only Bella is already there.  Edward is still a vampire with an Edwardian man's sensibilities, and he's still drawn inexorably to Bella, despite her pasttimes. 

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Edward is a medschool drop-out come pharmacist who hates his life. Almost every moment of it.

The light of his coldmedicine aisle is Isabella Swan, a frequent customer and constant source of escapist sexual fantasies; he is desperate for the courage and impetus to make them reality.

Bella, a girl with sardonic wit and a freshly printed Masters degree, finds work with the Cullen Group, being, what she deems, an overpaid secretary who finds inventors and designers worthy of some funding.

Work should be dull, and would be had she not made one of her trademark, clearly well thought out decisions: she started sleeping with her employeer's son, who is one of her bosses himself, days after meeting him.

Classy Bella, really classy.

She deems him an odd and spoiled rich kid [he is on an insane liquid diet, he has two penthouse apartments for the reason of "just because," as far as she can tell, his sweat tastes like magic (okay she concedes that here, she might be the weird one,)and he comes in to work in suits worth more than her car that are ruined from his runs in Central Park.]

Weirder than all of this, he seems to want a actual relationship with her.