How does the interaction between Helmer and Nora advance the plot? Nora realizes that Helmer will completely disapprove of her having borrowed money, so she has to continue to keep it a secret from him.
Nora realizes that she and Helmer have the same ideas about financial issues, and the conversation brings them closer together later in the play.
Helmer realizes that Nora is more responsible with money than he originally thought, and he trusts her more with finances later in the play.
Nora realizes that Helmer knows a lot more about borrowing and lending, and she will seek his input later when she needs it.