While I was working on a mine site, my de facto wife repeatedly cheated on me and when I caught her hiding it, we separated. Living under the same roof. (We are/were a de facto couple of 10 + years with one eight-year-old daughter.) My ex has been increasingly aggressive and irrational and now demands that I leave, plus sign the house over to her, plus pay $450 a week child maintenance. If I don't agree she says she will take me to the family court and also I will see a side of her that I have never seen before. The house is in my name only and was acquired 2.5 years ago. I have always paid the mortgage and all bills and currently pay my ex an allowance of $300 per week. My ex's daughter from a previous relationship also stays in the house. Despite an agreement after our separation that my ex's new boyfriend would not be let anywhere near our house, I was recently out of Perth and my ex uploaded a picture of her new boyfriend sitting in the kitchen of our house, presumably to taunt me. My 8-year-old daughter has told me that this man sleeps in the main bedroom and on occasion has driven my car, without my knowledge of course. (1) My question, what can I do about the entrance of this man into my house? The past entry and any future entry. He will, of course, be invited by my ex. (2) What can I do about him driving my car in the past? What about the future? (3) Most importantly, can I turn my ex out of the house? I will take care of my daughter for the moment but I can't live with my ex's aggressive and deceitful attitude. She is trying to provoke me by letting this man stay in our house while I am away.