My Grandma June raised me after my mom passed—she was both my parent and my best friend. When I started high school, my dad remarried Carla, who hardly noticed me but liked to post online as the “perfect stepmom.” Senior year, I wasn’t planning to attend prom—until Grandma and I watched a movie with a prom scene. She’d never gone to her own prom because of money. I told her, “You’re coming with me. You’re my date.” Grandma spent nights sewing a blue satin dress with lace sleeves. It looked perfe