Of necessity he must think that she was sorrowing on her own account.

That was true, indeed, but how impossible for him to interpret her grief rightly?
The shame of being misjudged by him all but drove her to speak, and tell him that she cared less than nothing for the loss that had befallen her.

Yet she could not trust herself to speak such words.

Her heart was beating insufferably; all the woman in her rushed towards hysteria and sell-abandonment.

It was well that Hubert's love was of quality to stand the test of these terrible moments.