Nora and Torvald are trapped in a failing marriage. They put on a useful image for everyone on the outside, that they're happy as a couple. But Nora is very unhappy, which she tries to push to the side until she can't anymore. (If I were married to Torvald, I would be super unhappy, too.) Her father and her husband both treat her as a doll, someone to use as they wish without regard for her wants/well-being. She then ends up treating her children carelessly, repeating the cycle, making me have mixed feelings about her. She borrows money (shocking for a woman at the time to be able to do that on her own) and leaves the life making her unhappy (another shocking thing for a woman of the time to do). With these actions, she proves her agency. Keep walking, Nora.

TBH I'm not really sure what I think of this. A woman shielded by her father then by her husband. He seems to control every aspect of their marriage and all Nora wants to do is love him and take care of him. When the climax of the play happens and he turns out not to be the man she was expecting, everything falls apart. Its just sad.