Yet she could not believe, after all his protestations of affection in Philadelphia, after all her devotion to him in those dark days of his degradation and punishment, that he would really turn on her.

No, he might stray momentarily, but if she protested enough, made a scene, perhaps, he would not feel so free to injure her--he would remember and be loving and devoted again.

After seeing him, or imagining she had seen him, in the carriage, she thought at first that she would question him, but later decided that she would wait and watch more closely.

Perhaps he was beginning to run around with other women.
There was safety in numbers--that she knew.

Her heart, her pride, was hurt, but not broken..