Okay..... this one was REALLY bad. Hubby and I were planning our wedding and every single decision we made his mother would question and try to change. One day the minister called and had a question because I had told him one thing and FMIL (now MIL of 20 years) wanted something else.
I can't believe I did this..... I said, "Why don't you just ask FMIL, since this is HER F***ing wedding, not mine! "
I apologized as soon as the words were out of my mouth, and told him about all the stress of having every detail questioned, including who was walking me down the aisle. He assured me he understood, and that although she was a member of his church and I wasn't, he would be sure to remind her WHO was getting married.
I still feel just awful about it. Oddly enough, since my Mom passed away 7 years ago, my MIL treats me as her own daughter, but those first 13 years of marriage were rough.