Okay so a year ago I was speaking with my step mother about the wedding and I asked if her daughter (my step sister) would like to maybe be a flower girl, of course she said yes. We didn't have much of a relationship (my dad is passed) so I thought maybe by inviting them and having her in the wedding that would change things. Well I haven't heard from her since. Our relationship is non exsistant. I have ordered the flowers already and everyone has their dresses. I assumed that she wasn't going to be in the wedding. Today I get an IM from her saying that they are so exciting and when do I want to go look for dresses. How do I respond to her and tell her that I no longer want her daughter in the wedding?? Or is it too rude and should I just make the changes? I have no idea what to do here... please help.