She Kissed Him. I Left with Her Friend

When my girlfriend kissed another guy on a dare, she said I was making too much of it. So when her best friend pulled the same stunt—drawing "take a guy home tonight" and offering me her hand—I said yes in front of everyone. By the end of the night, my ex was flooding my phone, convinced nothing had happened. She thought she knew exactly what went on. What she never knew was that Vivian's apartment was right above the bar, and I never left.