what does Nora observe about her husband?

Act II eventually sees Nora set up a test that will determine whether or not her domestic world is false to her basic nature. That is, having been confronted with the fact that Torvald will find out about her lie, the test is whether or not the discovery of her secret will strengthen or dissolve the marriage. If Torvald is really the loving husband she wishes he were, his discovery will only strengthen their marriage. The alternative is some kind of miracle that will free both of them from the iron cage of marriage that is expected of them. Check this out: