How often do you express to your partner exactly what you want or why you want it? When was the last time you shared with your partner how you feel when you get the thing you need? How can you even expect to receive the things you say you want if you are not physically, mentally, emotionally or spiritually present within the relationship to receive them?
How can I be more supportive. Dress nicely, as the girl will appreciate the effort put into looking good for her, and encourage her to do the same. Maybe things would be have different if I had been older or if I had not been so fragile. All that matters to her is things are how they are because god wants them that way. Make sure she knows the plan, so you both can dress appropriately.
I intend to spend some quality time in the temple, with my bishop, and with close family and friends as I think and pray my way through this decision, but I would also value your insights into this. Talk about issues with Jehovah's Witnesses etc. The envy of all of our friends. It sucks but ultimately what Mormonism does to people is it makes them value adherence to church more than their relationships with people. I'm not saying you shouldn't pursue the relationship, but I'd only recommend marrying her if she leaves the church because she discovers it's not true. Never marry someone with the goal of a post-marriage conversion. I would probably suggest that you cut your losses now. Seeing his mom, being the pillar of his family, scares me to think I will not be as strong as her, since I have always been the pampered child since young. I don't think so.