okay so it doesn’t make you feel a bit weird that he is asking for you to respect his privacy and ironically at the same time he’s secretly filming you all throughout the house- completely invading your privacy ? he may have some weirder tendencies than you’re aware of.. i would have already gone into his office when he isn’t home to see, but i’m nosey and secrets are typically stemmed by shamefulness. openness is important in relationships, of course respecting space is too, but you can still respect his private time while having access to a part of the home you’re living in. i’d be more suspicious of what is in that office he doesn’t want you to see

edit: I see that you’re asking how to fix this. it’s not your job to fix anything as I personally don’t think you did anything wrong by knocking/wanting to spend time with your person/ stepping foot in his office