Unlike your relationship with your W, you have an employer/employee relationship with the cleaning lady. You can tell her what you expect. It would be completely unfair to fire her for not doing what you never requested.
Everything you said about your W is true, but so what. You know you can't change that. You know you can't rely on her to deal with the cleaning lady or anyone else on your behalf. Get over the anger. What does it matter what the cleaning lady thinks/knows about A? That stuff is all noise bogging you down.
Next time you see the cleaning lady, ask her politely to include your laundry in the scope of duties.
Now, what's the fun plan for the weekend that takes your mind to a better place?
