That's a pretty interesting comment your wife made. Maybe she just needs to know that she has a bolt-hole in case she needs it at the moment. That is also really cool that you are entertaining friends together. That is a very 'coupley' thing to do.
Sounds like you are taking some risks in some of the things you say to her - challenging her - but you obviously have built enough trust so that at the moment she knows she is safe when you say them and doesn't take it as a personal affront. I also note that you are using the word 'we' - great progress!
Good work, and thank you for your post it was a comfort to me to remember that you selling your house hasn't meant death for the relationship! I always really appreciate your input.