Her suffering was the more poignant that she had to bear it in solitude.

She could not and would not share it with Vronsky.

She knew that to him, although he was the primary cause of her distress, the question of her seeing her son would seem a matter of very little consequence.

She knew that he would never be capable of understanding all the depth of her suffering, that for his cool tone at any allusion to it she would begin to hate him.