Harry bit his lip, and shrugged. "No, Williamson kept me after for a bit," he said, but didn't elaborate on the reason. Williamson had told him to keep it quiet, as each trainee would be going through the same thing at random intervals. "Oh, I didn't know you had plans later. Anything interesting?" Maybe he could tag along as well, but only if Ron wanted him to. He didn't want to be a third wheel, but he couldn't help but think that he and Ron were growing apart lately.
He followed Ron's gaze and landed on John Mitchell, and frowned. "That's the guy from the pub the other night," he said, drawing Ron away so they could talk privately. "Try not to make a scene. If we act normally, maybe we cna figure out what he's about." He trusted Ron's instincts, but they'd never find anything out if Ron went off again.