How are you doing? Did he return home or go completely AWOL last night? If and when you have your talk w/your h, stay calm, cool and collected. You will be able to judge his body language far better if you remain calm and even toned. The more emotional you get, the more he'll act stupid and spew.
I would definitely put some boundaries in place if you opt to allow your h to remain living under the same roof w/you. What you told him about transparency is very true. I honestly don't think he's ready to work on himself or the marriage at this point.
You will need to make some decisions as to what you want in the way of a relationship w/him for the time being. I'm very sorry that he's acting out. Nothing is worse than coming home and finding out that the op has been in your home.
Please take care of yourself.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.