Nephew, to DW: Auntie B, Auntie C your friend? DW: No, Auntie C is my wife. Sister (his mom): Remember we talked about how people who love each other can get married? Nephew: Auntie B, Why Auntie C your life?
And again later, out of the blue: Nephew, to DW: Auntie C is your life.
I'm sure someone should explain to him the difference between a wife and a life, but I'm enjoying the concept that I'm her whole life.