I agree with what everyone else has said. I know you came here looking for creative idea's on the revenge; not lectures. But what everyone is saying really is true.. although, i know it's hard to see it right now. You need to focus on YOU and making you happy. Lets say you do get the perfect revenge and you make this person as miserable as they made you. How will that benefit you? You'll have a moment of feeling satisfied.. but then you go back to living with the hurt that they already caused you anyway. Why waste time making someone elses life worse when you can be using that time to make yours better.

I believe the saying is, "The best revenge is living well"