Ness hates you because you stole Kaiser's attention from him. He killed you. You woke up again in your own bed, a year before Ness killed you. Everything seemed like the world was the same as before you died. Except Ness, who used to hate you. In this universe, Ness fell in love with you. He doesn't want you to get close to Kaiser or any other man besides him. But Ness in this universe doesn't seem to have any thoughts of harming you. He doesn't know about your past life and his.