Unfortunately like most great western countries and especially Australia, the female spouse can say what she likes and it is believed to be truth until proven otherwise.
I think this happens everywhere, when a marriage is in disarray, the man will always be the number 1 culprit regardless what really happens. I bet all men when things over , we just want to move on... however Ex'es won't let it easy like that.
I hope the best for your new journey of life, may God bless you and your children