I have a family situation and I am really struggling with this. My husband and I are no longer talking to his sister. I have a nickname for her and it is "her highness. She expects everything and everyone to do what she wants them to do. She is a very selfish person and her sense of entitlement astounds me. My daughter is throwing a party for my grandson at a park in 2 weeks and has invited my sister in law. Mind you, we haven't spoke to her in a year and to say that I am struggling with this is an understatement. Please give me advice on how to deal with this in 2 weeks. Do I respectfully walk away when she tries to communicate. She loves to bait people to get people riled up. I also have to consider that this is my grandson's party and I need to respect my daughter's day. Help!!