How to cut off emotions for a someone

Similar to some other responses, I will just avoid and forget the person exists until I can summon enough force and power to emotionally destroy them. I am currently in this stage with a former Christian friend of mine that I have cut off contact with. She used me, along with several of my other friends, (including the Wise Vivi) as pawns in trying to convert us to Evangelism, when we were just trying to be friends, and in my case, more than. She was amazingly sly in doing it by mixing a certain degree of flirting and sex appeal to the entire process. After reading an article on certain steps that Evangelists take to convert people, we realized that she was using these exact steps on us. I spend a few minutes about once a week determining how I am going to crush her world when she (supposedly) returns to university next year (Jesus told her to take a year off). Once I make her break down in public and collapse in guilt, I will feel I have avenged any misspent feelings I had wasted on her.

Jam it back in, in the dark.