My mother-in-law is always throwing her own party for the same event. I threw a party and she never shows up but she will throw her own party for the same thing usually within the next day or two. I had two baby showers, two bachelorette parties, two birthday parties for my son when he turned 1 and again when he turned 2. She will make a party, invite everybody and tell everyone we will be there and then tell us that she's throwing a party for us so we have no choice but to show because she ready confirmed that we would be there. Even when I tell her respectfully to stop she will play The Guilt Trip card. When I tell her I only want one party for a single event she refuses to show up and continues to throw her own party for the same event at her house on her terms without my permission.