Location: USA
Context: I knew this person from a dating app. He claimed to be in a really bad situation in life and was just trying to get back on his feet. I tried to help him however I could (pay for groceries, take him to work, let him stay at my place, was willing to loan money at one point, etc.). I did communicate with him that I had feelings for him but I wanted to know if he had feelings for me too. He said he was not in a good place to be involved with anyone and wanted me to wait when he was in a better spot. After that, we were simply roommates. But I found out that he lied to me (he went out with another guy and I saw it with my own eyes). I asked him to move out the same night with all his stuffs. He is now claiming that I propositioned him and because he could not take it anymore, I kicked him out.
How can I hurt him back? Nothing physical or violence please. I know where he live, work. I have some of his basic information. His ex filed a protective order against him. I can potentially look up who he went out with and send him an email telling him what happened? Or even his ex about his behaviors (he talked about wanting to get back together).