Well, I hate to say this...but you and your daughter are far better off being out of that house and away from his antics. Your story about the "default" sure does sound like dear old Camilla. It must be the tea over there. LOL!
Any way, there's nothing you can do about the three of them, but sit on the curb and watch the fireworks begin.
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.