Hi honey
Emigration is somthing many, perhaps most do to start again. It is not so common in the US of course.
Now if you don't mind, I have some observations made from a number of people who have emigrated.
You go to, whereever and start again. But you both do, as do your kids. One of the things that invariably happens is we each hope to get what we think we are missing. Here, in your case, it was a husband. In your husband's case, it was the opportunity to be female.
Now a second problem comes with people who leave behind a close knit family. There were many who left Ulster, for example, yet returned. For many, the option of Ulster, during the Troubles and Australia, would seem to be kinda onesided. The same thing happend with people from E Europe, including the Balkins!
But returning is a whole new game really. It's starting again, from scratch.
I'm just wondering if, you can perhaps, rethink the reasons why you went to NZ in the first place. Perhaps look for opportunities there.
As for your husband, that is a different matter. You haven't given enough information about the problems you are having.
But, whatever you do, I suggest you think it through, very carefully. You might return only to realise that, you did so, not because you can't get on with NZ, but because you can't keep up with the direction your husband is going in.