How we cite our quotes:
She did not look out again. The sound of the carriage-springs was no longer audible, the bells could scarcely be heard. The barking of dogs showed the carriage had reached the village, and all that was left was the empty fields all round, the village in front, and he himself isolated and apart from it all, wandering lonely along the deserted highroad. (3.12.15)
After seeing Kitty, Levin feels alone and isolated from the world.
"What can I write?" she thought. "What can I decide upon alone? What do I know? What do I want? What is there I care for?" Again she felt that her soul was beginning to be split in two. She was terrified again at this feeling, and clutched at the first pretext for doing something which might divert her thoughts from herself. "I ought to see Alexey" (so she called Vronsky in her thoughts); "no one but he can tell me what I ought to do. I'll go to Betsy's, perhaps I shall see him there," she said to herself, completely forgetting that when she had told him the day before that she was not going to Princess Tverskaya's, he had said that in that case he should not go either. (3.16.15)
Anna has a hard time making decisions for herself. Maybe this is part of the reason why, later in the novel, Anna has such a difficult time being isolated from society, including Betsy.
Anna pondered for an instant in uncertainty. This shrewd man's flattering words, the naïve, childlike affection shown her by Liza Merkalova, and all the social atmosphere she was used to, – it was all so easy, and what was in store for her was so difficult, that she was for a minute in uncertainty whether to remain, whether to put off a little longer the painful moment of explanation. But remembering what was in store for her alone at home, if she did not come to some decision, remembering that gesture – terrible even in memory – when she had clutched her hair in both hands – she said good-bye and went away. (3.18.34)
Anna exists comfortably among the fashionable, but the memory of her madness when alone goads her into leaving for her meeting with Vronsky.