One of my bridesmaids has started dating someone right before I got engaged. The guy turned out to be a complete lunatic, and she said it herself he is a narcissist and loves to control her. He's constantly cheating on her and lying to her and I have to do all the damage control. This is going on for a year now. I am planning my graduation party and my wedding at the same time, and dealing with her and her messy situation is starting to take a toll on me and my mental health. My bachelorette party was in vegas and she nearly ruined our trip due to his crazy jealousy. After Vegas I feel like she should no longer be in my wedding, I am afraid he is going to show up and ruin everything. I had hinted around this is Vegas and expressed I had concerns about her coming to our wedding in Brazil. She has already purchased planet tickets months ago. At this point I don't see her as my friend anymore. We haven't talked since Vegas and I want to make sure she does not come. How do I uninvited her?