On one side that memory was too awful to be thought of.

On the other side her husband's unhappiness had given her too much happiness to be regretted.

The memory of all that had happened after her illness: her reconciliation with her husband, its breakdown, the news of Vronsky's wound, his visit, the preparations for divorce, the departure from her husband's house, the parting from her son--all that seemed to her like a delirious dream, from which she had waked up alone with Vronsky abroad.