If that happened i just wouldn't watch any off the movies that would just be the worst thing ever.
What if jacob died? that would actually be really awesome. LOL
I think bella is way better off with Jacob because 1 he is sooooo sexy haha 2 he is so sweet to her and he puts up with the Cullens just for her in Breaking Dawn and Eclipse. If Bella didnt stop Edward Jacob would be thinking "mine now" and would do everything for her again