Why hasn't he blocked me on msn?

I got into a falling out with my friend Jennifer. I tolerated her because I am obese and unattractive and no one else wanted to be around me, and she used me, manipulated me, exploited me, slandered me, played with my emotions, and ridiculed me in front of her friends. She pretends to be a very good person, but she is extremely selfish. I made a list of all the lies, and every bad thing she has ever done to me and sent it to her boyfriend and then blocked him on msn so that he wouldn't think I was slandering her out of jealousy. I wanted him to know that out of respect for his girlfriend, I refused to be his friend when I was no longer friends with Jennifer.