Hi guys , In last few years, my partner and I had to face a lot of issues because of unwanted involvement of a 3rd person. That person has always been friendly with us but in last 2-3 years' time, he became too much involved in our personal family matters. He spied on my wife, her phone and tried his best to convince me that she has something with another guy. Because I knew him, I never thought he would making these things up. I tolerated all this, thinking he may have noticed something that was bothering him and I just let him continue (my mistake), thinking one day he would stop on his own, Maybe he misunderstood something and I thought he is concerned about me and family. But that guy continued his mind games with me, eventually leading to me and wife fighting all the time. Then after 2-3 years, I banned him. Now he is not allowed into my house / family, etc., but my wife still thinks what he did was harmless and she still talks to him on and off. Now everything he did, including spying on my wife, her phone, telling me things about her that never happened, telling things to my wife that led me into a deep depression last year, I was unable to stop my brain from thinking about what he did and why he did it (btw, he never answered why he did). Finally, I thought I needed help and went to my GP. He put me on anti depressants ASAP ( I have been on them for 6 months now), I also met a psychiatrist a few times last year. After 2 months of gap, I am again feeling very depressed as I just cannot stop myself from thinking of the things he said, did and why he did them. I am wondering is there any legal help can I get such as Personal Injury. Can I actually sue him for mental stress issues, etc? What legal framework talks about this issue? PS: I am originally from Melbourne but working in Sydney at the moment, since New Year. Thanks!