What contradiction does Kristine bring up to Nora?

In Henrik Ibsen's play "A Doll's House," Kristine Linde confronts Nora Helmer about a contradiction in her life. Kristine points out that Nora always stresses the importance of honesty and truthfulness, yet she has been living a lie by hiding her debts and financial struggles from her husband, Torvald. Kristine argues that Nora's actions contradict her professed values and principles. She highlights the fact that Nora's deception undermines her credibility and compromises her integrity. Through this contradiction, Kristine challenges Nora to confront the discrepancy between her beliefs and her actions, prompting Nora to embark on a journey of self-discovery and personal growth.