As far as Torvald knew, Nora borrowed some money from her father to pay for the trip. It therefore does not surprise me that Ibsen was made to write an alternate ending to this play (which he called ‘a barbaric act of violence’) for a staging in Germany where Nora eventually decides to stay, as audiences of the time could also not fathom such an ending. I think this is because an adaptation of a play follows the script very closely, so I just felt like I was re-reading the play again!