Gigi hugs for you
I know that spiralling out of control feeling when debts and bills start to pile up and there is no way out... I have no suggestion re leaving DH except this:
as most of you know my childhood was a constant spiral of debt and debtors, alcoholism and abuse in all forms and I always remember thinking about my mum's actions -why the hell do you just not leave. When we were adults and she finally left him after 30 years of crap I asked her why she took so long. Her answer was that she was scared that if she left him it would only be with her clothes and her 5 children and nothing else. No car, fridge, beds etc. She also said in hindsight if only she knew there were people and places out there who help women in this position - regardless of the situation being alcoholism, abuse, neglect, bankruptcy etc. - if only she was more aware and proactive.... As an adult I only wish she had have left years and years earlier so that SHE had more quality life than she did. Kids survive and adapt, you need to think about you.
Hmmmm regarding the debt ring centrelink and talk to them, even better go to a family service office and they can lay it on the table for you and you can open the dialogue with a view to resolution.
Big hugs hun xxx