revenge is for fags, douchebags, and women.
If you get revenge on her, she knows she made the right choice by getting away from from you. If you ignore her, and be cordial and nice to her if you run into her, she will ALWAYS wonder if she fvcked up by letting you go. ALL my ex's kicked themselves after letting me go. They all want me back, and I moved on. Thats the best revenge you can do.
Of course, one girl screwed me over around xmas, once, and it felt pretty good when I blew a load in every pair of panties she owned. Thats not really revenge so much, cuz I didnt tell her, and it was harmless. I wanted to deliver in plain package, a copy of our homemade sex tape to the guy she left me for, but I resisted. That would have been lame. keep it as a fantasy, it works better, and you can preserve your dignity.