I do NOT want a flower girl in our wedding, but my FI has a 5 year old niece. We were at his parents' house the other day so everyone could see the ring. I showed the 5 year old and asked my FSIL (but not the 5 year old's mother) if the little girl knew what the ring meant. She said yes and said that the little girl asked her if she was going to be in the wedding (would a 5 year old REALLY know what it means to "be in a wedding"? I found it hard to believe she really asked that...) Anyway, my FSIL told me that she told the 5 year old that OF COURSE she would be in the wedding because she is the only little one in the family. She would get to be the flower girl. I found this extremely rude of her to tell her that (I mean cmon, little kids remember EVERYTHING!) and not even talk to me about it first. I DON'T want a flower girl but now I don't know what to do. Any advice?