Rosalie and Emmett are NOT together. Emmett is with his wife Valerie.
Alice and Jasper still are though, so are Carlisle and Esme.
The site is based during Twilight, and it's right after Edward and Bella start dating.
There is no school on the res, so the La Push kids go to school at Forks.
What an interesting year it will be at Forks highschool.