Doc, What does your W refer to the rooms as? That should be your clue. For the past year, my W referred to the guest room where I slept as my room. She didn't call the main bedroom where she slept, our room. It was noticeable to me, and possibly to the people she would say it to.I never tried to correct her, as I thought it would create an irrelevant power struggle over words. I didn't like it, as you do, so would not support it by also using the terms. My control was not calling the rooms by the same name. She eventually began to invite me in to sleep with her citing various reasons, and now I'm close to sleeping full-time in "her" room.
CL
CL 53 W 54 M 20 yrs. 03'-09' Separation + Old Patterns + GAL 10-14' Piecing
"The Master allows things to happen. She shapes events as they come."