After Jacob, Leah and Seth left Sam's pack to protect Bella you phased into a wolf. You visit Jacob because his one of your best friends and you end up imprinting on a certain vampire.
Girl best friends with guy, Older sister comes home, Guy loves older sister, girl loves best friend.
This was pretty much Samantha's story. She loves her best friend Jacob. But as soon as Bella her sister comes home, Jacob is after Bella and pretty much forgets about Samantha. Will they come together or just go there own ways?