I agree with others not to make an issue of the receipts. They represent a real low point for him in terms of dishonesty and cruelty toward you. He's come a long way, and will go farther, I believe that. Hiding the receipts is dishonest, yes, but I suspect he is doing so out of shame. Yeah, it would be great for honesty and a sense of responsibility to trump his shame, but he's not there yet.
Maybe think of that part of your life as compost....smelly, and you may not want to look at or smell it too much, but it can be transformed. But some of that process requires darkness and being left alone for awhile (as well as turned over sometimes too....).
Piecing is the hardest part, isn't it? When you really do have to ask what it is that you want, because the reality of a future with H is right there in front of you.
