Isabella's Sister

Isabella has a sister named Lizzie Angel Swan, who Rene gave her rights up to and Lizzie is his baby girl, she is a daddy's girl and never really cared for Rene or Isabella.

Emmett's biological brother Alexander was also turned at the same time as Emmett, he hasn't found his mate yet, he is different to his coven he isn't a normal cold one he is a hybrid he is a wolf and a cold one which made his coven have a slight dislike for him except for Jasper, Rosalie and Emmett.

What happens when they meet?
What happens when Alexander finds out about Lizzie being his mate?