He loves her,wants her to be happy, and safe.He wants to protect her and make sure nothing can hurt her.He wants her to live a safe and happy life.also to stay with her.its like sam with emily,jared with kim,and quail with clair.they want to stay with them for ever!

well, each werewolf is assigned by some force of powerful natives a soulmate, and once u see this person, u become addicted and in love, no matter what age. that is imprinting. ;) TEAM JACOB ALL THE WAY

Yes like the one befour me said,that is kinda werewolfs soulmate...:).It's cool...:D

it means that he likes her more than a friend. and loves her more than a friend.

he explained it like all the strings from the rest of the world be cut off, and he only exist for her from then on.
so whether they're romantic or not he will still only care about her for the rest of his life.