And nor do you regret not going to Australia with Izzy.

[shootingstar]

Nora shook her head quickly, like a dog shaking off water. She didn't want to be confronted with that long inerminable list of mistakes and wrong turns again. she was depressed enough. And besides, she knew her regrets. Regrets don't leave. They weren't mosquito bites. They itch for ever.
'No, they don't' said Mrs Elm, reading her mind. 'You don't regret how you were with your cat. And nor do you regret not going to Australia with Izzy.'
Nora nodded. Mrs Elm had a point.
She thought of swimming in the pool at Bronte Beach (Bronte Beach is a small but popular recreational beach in the Eastern Suburbs of Sydney). How good that had felt, in its strange familiarity.
'From an early age you were encouraged to swim,' said Mrs Elm. . . .

(The Midnight Library by Matt Haig, episode Fish Tank)

Now,doesn't Nora regret not going to Australia with Izzy or doesn't Nora regret going to Australia with Izzy? What is true?

 

[5jj]

And nor do you regret [= you also do not regret] not going [that you did not go] to Australia with Izzy.

Nora did not go to Australia with Izzy. She does not regret this.