My wedding isn't for another year and I am already working on my guest list. One of the big problems that I have is my FI's dad's girlfriend. They have been dating on and off for awhile now and there relationship has been anything but healthy. I have a great relationship with my soon-to-be father-in-law, but I can't stand her girlfriend. The sight of her just annoys the crap out of me, not to mention she's an alcoholic and has a tendency of falling over from drinking too much. I would prefer to not have her at the wedding, because I know she'll be an embarassment to me and my fiance. Not to mention, that when she drinks my father in law and her tend to fight. What should I do?