If I were in bed enjoying a relaxing nights sleep and found for some reason that my spouse became dysfunctional, for whatever reason, and decided to cover my face with a pillow awaiting the moment that I no longer breathed, I would welcome the government into my bedroom via law enforcement.
Call me crazy....
you forgot about the harm exception.
Sorry, your spousal relationship grants no special privilages. The normal laws against assault and murder apply.
You're crazy!