he did it with the girl i hate the most.
Most Helpful Guy
I'm really sorry this happened to you. As tempting as it is to take some sort of revenge, you may be best just moving on and getting on with your life grateful for the fact that you don't have this person in your life any more. As much as it may hurt now, you are better off without someone who can do that to you in your life... Be thankful you found out now what he is capable of, rather than finding out much further down the line. Feel sad, cry out your tears, realise that you deserve so much better, become stronger, and live your life for you, be happy, and move on! Good luck! :)
Most Helpful Girl
If you take revenge you'd just give him the satisfaction of watching you suffer. I wouldn't waste anymore valuable time on him. Use the time, effort and emotions you'd be using to take revenge on healing yourself and moving on.
People should never react or respond after they've been deeply hurt. Only bitterness and more hurt will be gained in the long-term