Kristine gently tells Nora that she is like a child.
Nora is offended, so she teases the idea that she got money from "some admirer," so they could travel to Italy to improve Torvald's health.
She believes that he would not have stooped to unethical behavior if he had not been devastated by her abandonment and been in dire financial straits.
Krogstad changes his mind and offers to take back his letter from Torvald. As he reads them, Nora steels herself to take her life. Enraged, he declares that he is now completely in Krogstad's power; he must yield to Krogstad's demands and keep quiet about the whole affair.
Nora explains that she has done her best to persuade her husband, but he refuses to change his mind.
Krogstad informs Nora that he has written a letter detailing her crime (forging her father's signature of surety on the bond) and put it in Torvald's mailbox, which is locked. She gives her Krogstad's card with his address, and asks her to try to convince him to relent.
She refuses, and Krogstad threatens to blackmail her about the loan she took out for the trip to Italy; he knows that she obtained this loan by forging her father's signature after his death.
Krogstad leaves and when Torvald returns, Nora tries to convince him not to fire Krogstad.
Nora says that things have not been easy for them either: Torvald became sick, and they had to travel to Italy so he could recover.
Kristine explains that when her mother was ill she had to take care of her brothers, but now that they are grown she feels her life is "unspeakably empty." Nora promises to talk to Torvald about finding her a job.