Hmcd, I have enjoyed reading this post and hope it helps you. As background, I joined the church 15 years ago, after my (now) husband and I had been dating for a few years. Ever since, I have struggled with various aspects of the church and have had bouts of inactivity, mostly just because I was TIRED of the internal struggle .
My husband is a great man, went on a mission, but keeps everything to himself. My faith journey during these past 15 years has been very very lonely. I often think about how much better things would have been if I'd had ONE person to talk openly with, to discuss my concerns with, to know that they loved me unconditionally despite my doubts. So that's what I'd do if I were you. I am "active" right now but I still dont believe in anything other than basic Christianity. I go to church for my family, which is very difficult.
Just let him know that you love him unconditionally, listen to his doubts, don't judge him or try to sway his feelings. Meanwhile, live life like you know how to live it. I think he will come around :-). Good luck!