I believe that we are all on different paths, but that it is possible for us to travel on different paths side-by-side. The Mormon girl has the light of Christ shining through her, and you were drawn in. If I were you, I would just nope out of it and move on. He left his practice of many years and started a new one this week. Point is, I can push myself to my extreme physical ends and he has barely broken a sweat. And can you talk about hard things together.
If you can put yourself in his shoes, you would understand that, first of all, he is barraged by hungry patients all wanting answers and a piece of him. Easily found in most hospital lobbies. Find someone who is available to you and successful. Do you have any knowlege of the bible. Listen, you are in a bad situation and it just has not come to a head yet. Righteous love does conquer all but in some cases it takes a lot longer than we are willing to wait. Let them see the good in you, and believe that their son or daughter has found a good match. You should both sit down and have a serious conversation about what you want and what she wants and if you can both deal with the compromise.
I was just told that today when I told a friend how lonely it gets being married to a doctor and how I miss having my bestfriend around. He is truly my soulmate and I shudder to think that if I had not chosen to marry outside of the church, I would not have had this life with him. Except his wife was and still is a witch. While I do get to accompany him to various dinners and parties, we hardly ever have time together just us, and when we do, he just wants to relax over dinner and decompress. But no one can move on to one of the 3 Kingdoms until they accept Christ and totally repent. I am just short of living in a shelter because he has all of his pay going into a separate account for just him now and he has given access tot he account to his mistress. I have no support system; you are so fortunate to have weekly dates with your DH. Mormon decried it was all a lie, an anti mormon lie.
I think she sounds great but she won't be able to not bring it up. You need to disabuse them of this notion. That settles it for me. He want to wait at least one year before he makes any decision he want to take it slow. I would never convert. Take the crazy and add a ton of even crazier shit on on top and Your girlfriend literally believes in a book of scripture that was produced from a rock in Josephs Hat. She seems to be ok with that, and wants to continue our relationship, and also talks about wanting marriage and children, and raising those children to be mormon like her even if I'm not religious. Like it was mentioned above, see how she deals some of the issues now and if she can't handle it, it might be better to find someone else. Second, in my experience mormons have been some of the kindest people I've ever had the privilege to know, and they have not lived up to the cult image you describe. Sadly, the general consensus of "convert or nope out" sounds like what will end up happening.