She is in love with both which it says clearly in Eclipse. Jacob is her soul mate in the real world and who she SHOULD be with but her heart still wants Edward. She is in love with Jacob too but there is never any question that she loves Edward more and that Edward has her heart. This is all addressed in Eclipse.
They do fight
Jacob wins the fight.
they have a fight, but it isn't massive. They get in a fight when Jacob kisses Bella
because Jacob is persistent
Yup , Jacob tries to talk Bella into staying with him and not marrying Edward , but he kisses her and she pushes him away from her and punches him on the cheek and breaks her hand and then Edward comes and they have a fight.
"Goodbye, Jacob, my brother...my son"
yep
not in the books
totaly they fight over Bella
No, Jacob Black doe not try to kill Edward Cullen
Edward and Jacob do fight over Bella but not phyisically.In breaking dawn Jacob understands that Bella will always love Edward more than him.Also suprisingly Edward and Jacob start to become friends.
edward wins Bella for ever....but Jacob imprints on there daughter! :0 omg!!! lol