It was the young man she'd talked to on the train. And apparently Cirno knew him. Well, he'd seemed pleasant enough... But this wasn't a reaction she'd expect for an acquaintance of just a week.

And she was sure he'd been speaking Japanese on the train... She wasn't sure -what- he was speaking now, but it definitely wasn't Japanese, nor any variant of English that she knew of.

Could what happened earlier have affected their ability to talk?