Hi Steve
My wife says she wants to go home when we are at home lots of times and I know how distressing it can be.

Recently I asked her where home was and she said our address. We got our outside clothes on and went out and walked up the road. At last we saw the road name and I said shall we see if we can find the number. We walked back to "our house" and she said here we are and we went in and she was happy again. It probably won;t work every time but it did that evening and it made her happy for a while!
Its easy to loose patience but its not her that's thinking this.
Good luck Steve