Hi Missy, Don't change your plans, your sister would not want you to.
As for that scumbag in time she will realize that it could have happened after they where married The worst is that he was so wrapped up in himself not to consider Zach and his fellings. Hell is not hot enough for a small person like that. Sorry I should curb my reaction but this type of thing is a sore spot for me. I can't stand selfish people. Give your sister time and support and all the love your family has to give her and Zach God has a plan.
Gail