McCoy's bright smile at seeing her diminished a bit as she snapped an answer a little, her tone disinterested already. "I know, darlin', but I tried my best to get home to ya as soon as I could. You know that." He took a familiar seat on the couch beside her and relaxed into the couch, running a hand across his face with a sigh. "Shift was shift. Nothing too interesting, but never a slow enough minute for me to take a break," he said, the exhaustion clear in his voice. "How was yours?" he asked, turning his head to look at her, searching for eye contact. It was unlike his girlfriend to be so stand offish, and he wondered if she'd had a bad day at work or something.