I was in your same position years ago. It's a less common occurrence, but it happens. All this said, God is love and fully understands and appreciates your problem. I also think he is not used to anyone telling him "no" or going against his opinion.
But it is luck of the draw. And, whether she knows it or not she probably does know it but is in denialshe probably sees you as her ticket out of Oldmaidsville. I understand your internal conflict completely and my heart goes out to you. See to it that she is aware of your plan, so you both can properly dress. If you are willing to wait, then well and good; otherwise, it is best to move on. I like to think that what you said really resonated with her. Fall in love, learn, make some mistakes, laugh, serve other people, reproduce, and let the whole story start again.
He will not be permitted to bless the child in front of the ward, for instance, so you will have to choose to forego that ritual or find someone else to stand in for the father, which he may not be comfortable with. And your future kids will be taught that you are the reason they don't have an "eternal" family. I knew this bothered me, but it wasn't until I read this section that it hit much how much it bothered me and how alone I feel. She asked me the other night how it's possible for me to be such a good person when I don't believe in god. Adding an interfaith element means you have many more adjustments to make.
The man had essentially been in acadamics his whole life and was emotionally immature. Being the first in his family to make it, he now supports the lives of those who didn't. He will not be permitted to bless the child in front of the ward, for instance, so you will have to choose to forego that ritual or find someone else to stand in for the father, which he may not be comfortable with. You I think are ok with that. I visit him every month, we managed to go on weekend trips when he's off and he's spend all his vacay time with me and his family. I have just found this blog recently that makes me know that I am not alone. You'll know pretty quick where she stands.