You don't have to believe them yourself, but you need that respect in thought as well as action, and you need to frame this as your own journey because you can only change yourself. This was hard for me because my faith is deeply rooted within me.
I do not understand what makes these nurses camwither that they have a place in his life. He may never come out and say it, but if you mention marriage outside of the church and he's OK with it, you have a slight chance of being happily married to her and not being mormon.
Be fruitful and multiply.