Eish, I was in the same situation. In 2007 me and my then fiancee decided to move to NZ. I went over first in 2008 and secured a job and WP easily enough, and PR was processing and she was preparing to come over, when she decided she doesn't want to anymore and will never want to leave SA. Not only that but I couldn't even speak about emigrating or NZ again because it's simply out of the question. Even though she agreed it was best for the future, she didn't want to ever leave SA or her family and parents.
To me that's not a relationship anymore, because there is no compromise or taking the other persons reasoning into consideration. I'm not saying that's the situation in your case, but it was in mine. Giving someone a point blank ultimatum between doing what they want and say or buggering off isn't on in my books. I was willing to compromise, maybe a LSD visit for her or move and see how it goes for a year, but no was the answer.
At the end of the day you have to decide what's more important to you, because if she makes you insanely happy then staying wherever wouldn't really matter, but if your reasons for wanting to move to NZ are as strong as mine then nothing will stop you...
I agree with Savayla's first paragraph, and SaKiwiBoer's comments, as usual...
