Weird dreams.....let's see some of yours!
My brother read in his book that some Doctors think that some of our dreams pass through our minds in a non linear manner, jumbled and out of order....that when we wake up, our conscious mind tries to assemble the sequences in an order that makes sense.
The scenario where you are in a childhood home with your current wife that has never been there could be two independent thoughts that your brain is trying to merge.