Drowning in Lies

The question stumped Melody, and she froze, staring at him. Eventually, she realized what was up. Does he know? He knows I took the credit? No way. He was unconscious back then, and Genevieve lost her memory. There's no way he could've found out unless Genevieve regained her memories, but it's been years. She should've remembered a long time ago. That means she never remembered, so what happened?