Maybe the best way to get him to open up is to bring him here! When he sees how open you've been with us, he'll realize that you really are looking for understanding, not conflict. Conflict and more confusion has probabaly been what his secret life has always been about for him...
Have you seen all the very wise advice that the girls and ladies here have already given you? There are many slightly different shades of meaning here, but they're all saying essentially the very same thing: your husband loves you or he wouldn't have shared, he's just as scared as you are about what seems to be a huge problem that really isn't, and that the both of you can be in control of this thing, it's not just "his thing".
Your specific questions have very simple answers really. And the small gestures that they require will give your 'girl' a lot of confidence in you and a great deal of relief. Worried about him wanting something you buy? Encourage him to get the same thing in his own size. Worried about him raiding your panty drawer? Give him a drawer of his own. (It's a lot nicer than hiding stuff in the basement or the attic).
Give him a little gift of something you know that he'll like. That little token of acceptance will be more appreciated than you can ever imagine, and may open the floodgates of tears and conversation at the same time. With the beginnings of a wardrobe of his own your own things are safe. If you don't like him messing with your things, just tell him...gently. This is what the girls mean by boundaries. But, also remember, it's only stuff. And as we've said before, the world is full of clothes! Surely, your love and relationship is more important than a few scraps of cloth!
It's all about perception, dear one! Your perception of his 'affliction' might change to see the advantages of it. His perception of your fear might change to finally see your acceptance of what ultimately may bring you closer together as friends as well as lovers and mates.
We all hope so, babygirl, because as even the newbies above can tell you, there is life after CDing and for many it's a much calmer, happier one, for CDer and SO alike...
respect & love,
deja
:<3:
And take the time to read extensively in the archives. There's an education there like you've never encountered before!