She felt that he was capable of keeping his word, even if by so doing he seriously injured himself without gaining any advantage.
A nature like Diana's always looks danger boldly in the face.

She had, however, but little choice how she would act--for to apply to Norbert was the only resource left to her--for she knew that he would do all in his power to ward off the danger which threatened both of them so nearly.

The idea, however, of applying to him for aid was repugnant to her pride.

To what depths of meanness and infamy had she descended! and to what avail had been all her aspirations of ambition and grandeur?
She was at the mercy of a wretch--of Daumon, in fact.

She was forced to go as a suppliant to a man whom she had loved so well that she now hated him with a deadly hatred.