Vronsky asks to talk to Dolly. She notes that he's going bald.
Vronsky is concerned about legalizing his family situation. If, for instance, he has more children with Anna, they would all legally be Karenin's kids.
He begs Dolly to use her influence with Anna. Apparently, Anna refuses to talk about the situation every time Vronsky brings it up for discussion.
Vronsky says that he and Anna are bound together for life. Vronsky also talks of the many responsibilities he has assumed and speaks passionately about them.
Dolly suddenly realizes that Anna's new habit of narrowing her eyes always happens when a topic of conversation arises that Anna doesn't want to address. Dolly speculates that Anna is trying to shut her eyes to the world.