Ok - I get you are frustrated. Your ex is being a jerk. But letting your 8 yr old read your court docs?? Not good. Your parenting is much more than a court doc and you are trying to justify the fact that adults don't talk by blaming the courts and your ex.
You need to stay firm that you and mommy are trying to work it out but it is grown up stuff and you will let her know when it is done.
You need to tell her that you both love her and you are trying to make sure you do what is fair.
But you just made an adult of your eight year old. The court DOES NOT like when parents show kids the agreements.