"I'm sorry." His eyes went wide as he realized that he'd been unconscionably rude - he hadn't even ordered coffee for her! Mentally facepalming, he sighed under his breath. Thirty-four years old and he was still an incompetent human.
He watched her as she sat back down, wondering how much to divulge to her. Wondering if she had a place to stay. Wondering... he pulled his thoughts back to the present.
"It's not entirely true that you can't leave. Sometimes people do. It seems to be just as unexpected as their arrival. One day she just... wasn't here anymore. Wasn't in this universe. I don't know where she went or what happened to her. I worry sometimes." All the time. "I hope, wherever she is, that she's all right. That she's found happiness."