I have 3 friends who I would like to have in my wedding, plus my fiancee's sister. 2 of my friends had a falling out a few years ago and one of them still isn't completely over it. I'm trying to figure out if I shouldn't ask her to be in the wedding to avoid any potential awkwardness/drama. She is one of my very good friends and I'd hate to leave her out because of this, but I also don't want to cause unnecessary stresson me and the rest of the bridal party. Also if I had all 4 of them my fiancee would have to pick his 4th attendant from a group of close friends, possibly creating some hard feelings there... Any advice?