My ex is court ordered to carry insurance for our child. We then split uninsured 50/50. She sent me a very large bill expecting half from me. She dropped her coverage months ago and never informed me and now wants me paying the bills because she is getting past due notices. Am I still responsible for half when she isn't following the order by maintaining coverage? We would have had the option of going on a sliding fee with our child's provider had I known there was no insurance. However, they won't work with you on past bills, only future.