I think it's obvious why -- he doesn't want to be transparent with his finances, lest Autumn see what kinds of things he's spending the family's money on.
Best to let your atty handle. He will (you both will) have to provide something like 6 months of DETAILED accounting of ANY AND ALL bank and credit card accounts as part of the divorce anyway, so I'm not really sure what he thinks he's accomplishing, other than just getting his latest fix.
