Was nora's action to leave justifiable?

For Nora, her action was the right thing. She felt trapped; she felt like a play thing taken down from the shelf when her husband deemed her worth paying attention to; she had no fulfillment, no individuality. Torvald not only doesn't treat her as a wife, he can't even comprehend what she did for him...... he leaves her hanging, no support, no interference. This realization that there isn't and has never been any love between them seals her decision to leave.

"Our home has been nothing but a playroom. I have been your doll-wife, just as at home I was papa's doll-child"

Her exit is a new start.......... and the chance to grow up and be a woman.