The strong grasp of it almost hurt her.

She struggled to release herself.
"Let me go!" she said.

"What do you mean ?" He dropped her arm as suddenly as he had taken it.
"You shall know what I mean," he replied.

"A woman who has grossly outraged and insulted you--whose only excuse is that she is mad--is detained in the house at your desire, I might almost say at your command, when the police officer is waiting to take her away.

I have a right to know what this means.