Any advice?

Once again she’s trying to modify their divorce decree. They haven’t been together since their son was 5 and he’s 10 now. She’s money hungry. She waited until the night before court hearing to send over her counter proposal. No abuse going on over here so I’m hoping they don’t change it. She wanted to change from 50/50 custody to Wednesday and every other weekend. She wants him to pay for not only school activities which we do 50% of everything without arguing. But the school charges $30 a day to bring your child to school early and $30 for after school. We do not use that service so we shouldn’t have to pay half for it. We pick him up and drop him off at the correct time. She is married as well. He’s paying 100% health insurance she’s crying because she wants him to pay for the more expensive one, mind you it’s already $300 bi weekly. I swear this is co parenting manipulation. She bad mouths him with lies to their child. We never ask for reduce time.