The only thing that happened with the Volturi and the Cullen's before Bella got turned was that Alice had sent them a wedding invitation. Of course they changed it, the directors always do :/
It came on during the credits. Basically they found out Bella got turned and Marcus and Cauis thought they were done with the Cullen's but Aro said there was still something he wanted aka Bella because he knew she would have power when she got turned.
Awww, :'( I'm sorry that you only get to read one chapter a week but I try and publish them as fast as I can. School just gets in my way :/
But hey, think of it this way. If you followed me on Quizilla remember I would update like once a month. At least I'm getting stuff out faster on Mibba :)