My sister wasn't always so bad until she met my BIL and had 2 of his kids. I have put up with her crap for the last 5 years but she recently crossed a line with me and I am learning the lesson of sending love from a distance. I don't want to turn my back on her but I need to limit my interactions with her to maintain mental health. We live many states away from each other, she refuses to get on a plane to travel. This is a manipulative behavior of many that makes it so everyone has to come and visit her. She doesn't hold up her end of the relationship for myself and others. To add to this, her husband is a racist gun nut who told my cousin, whom he had only met an hour prior, that he did not think slavery was that bad. Love the kids but after 3 days of driving across country they won't be a delight at a wedding. The BIL is sure to have interesting conversations with my guests from every race. My sister can find any number of ways to make a day bad. How do I tell her she isn't coming?