She believed it too. Even he wasn't a good enough actor to pull off such a convincing performance of terror as he did the night she first attacked him in bed. The experience rattled him. If he'd been responsible for the spells blocking and altering her memories, why would he have been so desperate to find help? Maybe if everything he'd ever told her behind closed doors was a lie she might see a reason to suspect him. She knew him better than that though. Lying to her spouse was more Hermione's habit than his.