Perhaps, in the dream that possessed him, he heard her speak.

Possibly, he was unconscious of her silence, borne along by the torrent of his own long pent-up speech.

She could not tell, she did not care to know.

Of one thing alone she thought, of how to escape from it all and be alone.
She feared to move, still more to rise, not knowing what he would do.

As he was now, she could not tell what effect her words would have if she spoke.