Because Jacob loves Bella that's why
No
I'm not sure what your asking but if you want to know how to say it in Spanish this is how: Bella y Edward o Bella y Jacob. Not much difference.
Jacob
In Eclipse, Jacob and Edward are with Bella in the woods. A vampire army is coming in, so they are waiting out of the fight at Bella's command. She doesn't want them to be hurt. So in the morning, Jacob leaves the tent to check in with the pack. Only Edward knows that Jacob is waiting outside the tent, so Edward brings up the engagement. This information hurts Jacob terribly, as Edward intended. He didn't want Bella to be taken away by Jacob.
Bella can do better than a kid how becomes a dog when he gets angry. Jacob imprinted on Edward and Bella’s child, Renesmee. Jacob also said that he wouldn’t want Bella when she is a vampire so... yeah. Also Edward is hotter.
In Breaking Dawn Edward tells Jacob the he can kill him if Bella dies seeing as he doesn't want to live without Bella. At first Jacob agrees however later on, once they believe Bella to be dead, Jacob says he will not kill Edward as he wants him to suffer.
It's different in the film to the book. In the film Edward gets really angry when Jacob kisses Bella without her wanting him to, I wouldn't say it was a fight but he does push him a lot. Edward and Jacob also have an argument when Jacob has to get in Bella's sleeping bag to keep her warm and when Jacob tells Bella Victoria's back when Edward didn't want her to know. Although this kind of turns into an argument between Edward and Bella. Hoped this helped :)
Edward and Bella don't want Renesmee and Jacob to date let alone get married!
because Bella went to Jacob's house before she went to Angela's and edward told her he didnt want her to see Jacob because he thinks that Jacob is dangerous
Edward wants Jacob to stay away from Bella and stop trying to interfere in their relationship. He wishes for Jacob to respect their choices and boundaries.
Yes, Edward forgave Bella for her actions involving Jacob. He understands that she was acting out of desperation and confusion, and ultimately, their love and understanding for each other overshadowed this incident.
Honestly you dont want to know.. read the fourth book to find out. but if you want a spoiler then: . . . . . . . . . . . . Jacob Imprints on Edward and Bellas baby, which infuriates Bella. lol