If they hadn't been that far apart Aidan would have reached out and squeezed Millie's hand. Merlin knew, far too many people had been hurt - emotionally as well as physically - during the war and it was plain the she had been one of them. In fact, Aidan didn't really fancy recalling his final year either.
"But it's over." He said softly, unconsciously gripping his glass a little harder than he intended to. "The war is over and there are no more Slytherins who can spontaneously swoop down on you and get you into trouble." Whereas 'trouble' was putting it nicely. Things had been bad enough back then to consider Filch's use of shackles as a respite.
Aidan forced a reassuring little smile on his face. "I'm a Halfblood," he said quietly. "I think I know what you went through. You don't have to talk about it."
He cleared his throat, getting a bit uncomfortable and gratefully proceeded to the next topic. "So...drumming. You know, I'm loud. Really loud." He grinned and shrugged. "Unfortunately that's all. I'm loud and bad. Do you play any instruments?"