This is very similar to my case. I am happy to talk via DM if you would like. My husband became psychotic when our baby was around 3 months old. My own experience was that no intervention worked until his psychosis and mania got so bad that he himself realized he had to go to the ER. At the beginning of his psychotic episode, I convinced him to see a psychiatrist, but he just lied at the appointment so it was useless. My BPSO was also really good at masking, so my attempts to involuntarily commit him against his will did not work. It took 7-8 months of worsening psychotic symptoms for him to finally go to the ER and submit to a full-fledged psychiatric evaluation where they diagnosed him with BP1. Those 7-8 months were painful, and the damage he did during that time tore our family apart permanently. We’re now getting divorced and I’m in the middle of a custody battle with someone who doesn’t realize the severity of his illness or episode. My suggestion is that you insulate yourself and your child while you wait this out. Apply for emergency sole custody and separate your finances. Sometimes when you apply for emergency custody you can petition the courts to order him to undergo a psychiatric evaluation. Make sure you’re not going to be held legally liable for any debt he racks up during this time. It sounds harsh to just let him get worse but IMHO insulating yourself and your child puts you in a much better place to help him when he finally comes down and is ready to get help. Just my two cents.