So, I used to get along with my future SIL, but some events have occurred where I don't trust her, nor do I get along with her. Unfortunately, she is a bridesmaid and should be at my bachelorette party. How do I get out of her being there? She WILL be 21 and the party is in New Orleans four days before my wedding. I just don't want her there, and I don't have a good excuse as to why she won't be invited. HELP!