why would jacob's dad tell bella to break up with edward.

In the twilight movie number one bella moves to fork's to live with her father then she started going to her new school were she met edward and were she didn't know that he was a vampire but then a few month's later she found out that he was a vampire and he was seventeen since 1918 but bella wasn't afraid of him then edward told bella that she had no idea how long he has been waiting for her and then they fell in love with each other then edward took bella to play baseball with his family then james smelled her scent and he was planning to kill and he almost suceeded but failed then when edward and bella were going to prom jacob came to tell her that his dad wanted her to break up with the love of her life but she wouldn't do that jacob and his dad should learn to mind there own business instead of telling bella to break up with edward.