I agree w/HaWho 100%. You need to get 1/2 of those assets moved out of the joint account and placed in an account of your own...you might even want to consider a different bank or credit union. As for what he withdrew for the house w/the ow, that money should now be divided in half since it came from joint assets.
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.
