Do I understand this correctly OP, you ran away from your own fucking house? I mean you are the fucking man in the house, and I guess you earn most of the money in your household and you are not even the boss in it. This was a huge mistake, you should have told the bitch she has 15minutes to back her stuff and get lost together with her fuckbuddy. You are literally the embodyment of beta cuck and it does not even surprise me as you are from ausfailia.
OK now what can you do?
0) Never ever make implications you are gonna kill or harm her or her fuckbuddy, she will use it against you
1) Do you have children? If not, there are no major consequences besides money, dump the bitch
2) Do you have funds your wife knows about? If yes try to withdraw them or transfer them into your own account (offshore bank accounts would be great) or freeze them at least so she can't spend it. If she files for half of it you will lose half of it but at least try to not lose everything.
3) Try to keep your house or at least try to sell it and pay her out if she files for the house
Good luck I hope you learned your lesson