With minimal support on my side and going against everything I had grown up learning, I had to trust my relationship with God. The religion rather, and more importantly, the church itself is integral to most mormons' identity. Response to your edit: Do NOT bring up or mention anything that could be considered "anti Mormon. I don't know if living vicariously through him will be enough. This lack of inclusion within the general society makes them socially awkward, especially around men. I get looking ahead, but it seems like you are very unhappy with the way things are now. And as an outsider it will be obvious to you what's going on, but here's an awesome breakdown from a couple that flipped from "we go to church every week - we will write a Mormon blog" to resigning over the new policy banning children of gays all over the NY Times this month and something that is upsetting many staunch church members a few days ago. There is still a chance you can work out your differences, but it will require major concessions on both sides.
On his days off he sleeps all day long. If I had one thing to add, mixed race marriages are quite similar. I don't think it's going overboard, though, to state one very possible and very likely scenario, and that is that this girl may likely be completely indoctrinated and believing.
I google searched for support with tears running down my face. This always seemed terribly wrong to me. I love my husband with my whole soul. If she is motivated enough to want to go on a mission, she will likely not settle for having a second class "eternal companion" you who is a convert or one who cannot be sealed to her for eternity. They think highly enough of themselves, don't add to their ego. I am a non Mormon. In the long run, being married to a nonmember has made me a better person.
Note, her mind and TSCC were married first. Read our FAQ s. All this said, God is love and fully understands and appreciates your problem. I know you got a zillion replies, and I have not read them.