Shortly after moving in with my gf into a tiny space, I realized that beyond, but including your realization, sometimes they just like to move stuff around occasionally. I think my father's lack of realizing and accepting this is what's led him to ruin any living situation he's ever had, because he just can't give up a little control and share autonomy over a combined space.

I notice this in reverse as well, it's probably best when moving in with someone to get a new place and set expectations early.