Good questions. I think if they came over and maybe if her H talked to your H alone. Your H may open up more than if it comes from the W.
I have the same questions about boundaries. Wiley says that the WAS needs to feel that they have "lost" the LBS. That will hopefully open their eyes. I think it is ok for him to have a key. He should have time with his S alone. He needs to see what it will be like if you were to D and see how much he likes it then.