Most Helpful Girl
Trust me, I wanted to do mean shit to my ex when he cheated on me. The meanest thing I did I guess was not give him back his expensive jacket because it's a nice jacket.
I was tempted to do mean shit like slash the tires of his mustang and scrape the paint while he was at work, mail him his jacket cut up into pieces, pour water on his head when I realized I was sitting behind him at a basketball game, lots of stuff. Good thing I didn't because that's all illegal.
The best revenge is just ignoring their existence and moving on with your life and finding someone that makes you happy.