Bridesmaid leaves husband who is groomsmen she walks with down the isle 3 months before wedding DRAMA? HELP!!?

Here is the situation my fiance and I have gotten word that 2 of our very good close friends are getting divorced they are both in our wedding her as my bridesmaid and him as a groomsmen they are scheduled to walk together. They say they can be adult about things and make it through our day because its not about them. BUT can that really happen??? Things have not been very civil between them currently. My fiance refuses to change the order of the wedding party any other suggestions? Should we x them out of the wedding party? I just don't want the their DRAMA to ruin OUR day! PLEASE HELP!!!