My Sister Stole My Fiancé—Then Had the Nerve to Ask for My Wedding Dress. So I Gave Her a Day She’d Never Forget. I’m Lauren, 35, and last year I learned two brutal lessons: never trust blindly, and revenge is best served in white satin. I spent years saving for my dream wedding—every centerpiece handmade, every dollar counted. My proudest creation? A $4,000 custom gown that made me feel like royalty.

Then, two weeks before the big day, I discovered my fiancé, Tyler, was cheating with my sister, Amanda. I caught them via a flirty text and photo she sent to his phone. They didn’t deny it. In fact, they had the audacity to say they’d “fallen in love.” I canceled the wedding immediately. My heart was shattered.A week later, Amanda showed up, grinning. She and Tyler were now engaged and she wanted my wedding dress, venue, and flowers.