Nora did this fully believing that Torvald would do this in return for her, if there ever came a day he needed to do so. However, overtime Nora began to realize that she would not get in return what she was sacrificing for him. Without even realizing it, Nora was evolving and wanting her independence from Torvald and the mess she had gotten both of them into (Goonetilleke, D.C.R.A). As Nora evolved she also came to the realization that she was never an equal partner in this marriage (drama for students). By the end of the drama she decides to leave Torvald and her children in order to find herself as not only a wife, but as a mother.
Nora Helmer evolved a lot during the course of A Doll House. She went from being a typical middle class wife, to someone who would stand up for herself. She learned that she did not need her husband to get anywhere in life. While she did a lot of things to mess up her marriage and put her life in shambles, I feel sorry for her. She always did everything to make sure her husband was happy. Nora Helmer was the doll in A Doll