Quote 16
NORA: "Yes—yes, of course. Just recall to your mind what these malicious creatures wrote in the papers about papa, and how horribly they slandered him." (2.108)
It seems Nora's family has a history of scandal.
Quote 17
NORA: "Nonsense! Trying to frighten me like that!—I am not so silly as he thinks. […] And yet—? No, it's impossible! I did it for love's sake." (1.413)
Nora is under the impression that love supersedes the law.
Quote 18
NORA: "You know how devotedly, how inexpressibly deeply Torvald loves me; he would never for a moment hesitate to give his life for me." (2.189)
When Torvald fails to do this at the end of the play, it proves to her that he just doesn't love her as she thinks he should.