its because, bella didnt 펀치 paul, she slapped him and really 당신 cant injure yourself 의해 slapping anything, but my punching 당신 can, so quit the 질문 cuz ur wasting everyones time trying to explain why this is,
Well in the book she don actually ever do anythin 2 paul, in the film she kinda just slaps him, wheras jacob she physically punches him in the face full force-causin her 2 like break her hand.
Well it’s because Paul isn’t as strong as Jacob which is shown in their battle Jacob has 더 많이 strength that being said he is the strongest in the pack which is why it hurt when Bella hit him