I hope you were able to control your barf response when he said pathos.
The main thing here is your daughter. If 10% of what you have said is true, there is no way he will get custody. I figure about 18-19% min. (OMG, I used a smily!) Seriously, don't let something that hasn't happened get in the way of your health. You need your sleep.
As for the rest. Jst take it as it comes. It's really all you can do.