To me it is apparent that when your wife said "sorry, no more sex, now or ever", you needed to say at that moment "ok sorry, but I can't get on board with that, guess that means splitsville". I mean, how else can we interpret your story? You complacently accepted her terms, but now you are struggling to figure out "what to do". But, what IS there to do? You accepted it. Now you can either change your mind and tell her you don't accept it, or continue accepting it.
