Answer:
How does Nora view her own deception:
I am not sure, I am sorry. But I gave you the answer to the second question. Hopefully, you get the answer from the first question by someone else.
Why does she lie:
Nora lies to Torvald about the macaroons because she feels the need to maintain her dignity and self-respect, while catering to her own desires. She lied about the loan because in the story it is said how you need you husbands consent to borrow a loan, which she did not have. So, she did it secretly.