“It’s finally official between you two?” Kat stopped browsing and stared at me, “I thought it happened weeks ago.” I continued to study the array of costumes in front of us. It was a couple of days before the party and I’d still not decided on a costume. In lieu of a mass-marketed outfit from a pop-up chain store, I’d been scouring thrift shops for inspiration. “How’d it happen?” Kat came up beside me, crossing her arms....