Hi @Muddles17. I see you are new to the forums. Welcome! I hope that you find it a helpful and supportive place to be.
Thanks for sharing your situation - it sounds extremely challenging. When a loved one is so unwell it can often be difficult to tell where the person ends and the illness begins (as you say). There is a thread here on that topic that you may be interested in reading.
The experience you had in the park with your husband sounds very scary. I'm sorry you are not feeling supported by the hospital. There are many members on here who have experience caring for a partner with mental illness. @Shaz51 hope you don't mind me tagging you here.
Most importantly, keep looking after yourself (and the twins!).
All the best,
SANE Forums is published by SANE Australia with funding from the Australian Government Department of Health