delaying financial arrangements

my wife has given me an ultiamtum- we return to Australia together (I am English , she is australian) or she goes seperately and gets a divorce.
I do not want a divorce and we still live as a couple . Can I delay the divorce proceeedings for up to 5 years so I can still live in our house ?

Will this be irrelevant if she goes aborad to get a 'quickie divorce' and then gomes back and instructs a lawyer to sort out the financial arrangements

I suggest the way to consider this is to look at which jurisdiction would be more generous for her.

Research that...generally UK is a preferred choice for may W's especially of wealthy H's.

Some jurisdictions ignore pre owned assets etc..if that relevant..check

It rather looks like the marriage may be doomed if she makes those demands. If there are Children that may influence your descision.

In UK if she wants a divorce now she will likely force the issue and seek divorce on unreasonaable behaviour.

It isn't difficult to do that in reality unless one is a Saint!

5 yrs sep without consent is a ground but if she wants it now she will go down the above route.

Generally she has to satisfy the jurisdiction abroad to issue. Here parties have to live here at least 1 year.