Hi MammaCT,
I'd like to join livednlearned and welcome you to bpdfamily. I can see how frustrating and difficult it is when we co-parent with someone with a mental illness and they alter reality often. It helps to talk to people that have walked a mile in your shoes and can offer you guidance and support. BPD is an emotional dysregulation disorder, sometimes if our exes are emotionally dysregulated and having a tantrum, timing can really help. For example if my ex wife is in this state, I usually wait for a day maybe two and she won't recall that she was dysregulated and it's easier to communicate. You're not alone.
How many kids? How old are your kids? Boys or girls?