Quote 1
HELMER: "Well, we will share it, Nora, as man and wife should. That is how it shall be."
Helmer seems to be aware of the concept that marriage is a shared experience, so why doesn't he ever act like it?
Quote 2
HELMER: "The child [Nora] shall have her way." (2.385)
Helmers' relationship seems to be more like a father and a daughter than a husband and wife.
Quote 3
HELMER: "Do you know, Nora, I have often wished that you might be threatened by some great danger, so that I might risk my life's blood, and everything, for your sake." (3.214)
This is the wonderful thing that Nora has been waiting for. Unfortunately, Torvald isn't true to his words, which causes the disintegration of the marriage.