Shelby, he is only thinking of himself. Once he filed for D, he no longer had your best interests at heart. You need to speak to your attorney about what you might be able to get. However, given your length of marriage and your health, he should have to pay support for you as well as child support. You should also get enough support that you don't have to go full time for a certain time period. Ask your L about getting temporary support. It surprises me that they won't get a hearing before October.
He is trying to use his money to get whatever he wants. The only problem is you don't know what his agenda is. I would not give him any papers unless you already have a copy of it. He can get financial records directly from the institutions. You need to be gathering information as well.
You need to be all about protecting yourself right now. What he is saying and what he is doing does not match. You cannot trust him.
