In your first post you say that you "decided to bring another woman into our marriage".... Don't forget that you also came into HER life. The relationship you have with your husband has now become a balance of three. Not you two and her tagged on. Everyone has an equal right to the relationship you have created. Her feelings are just as valid as yours.
I also suggest that YOU talk to her about how you feel, not just your husband. Even though you aren't intimately involved with her. The relationship is still a triad in terms of emotions... my Mono and Nerdist often talk to each other about how they feel and work very hard at their friendship in order to keep the balance in our relationship. It's very important. I imagine more so that you live with her.
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