You couldn't be expected to detect it.

But"-- he paused--"don't you realise now why I am offering you the only reparation in my power ?" he said.
She was trembling, but she did not raise her head or attempt to move, though his arms were ready to release her.
"No.

I don't," she said.
Very steadily he went on: "You have not wronged me.

It was I who did the wrong.

I could have made you see his guilt.