Don't. I cannot recommend the experience. It is hell on one's sense of self-worth.
I'm re-evaluating the groups of people I consider friends and worth spending time with. I spent a lot of yesterday in bed, wishing the world would just go away. It won't, and so all I can do about the resurging pain is cut people out of my life in the hope that they'll quit hurting me.
Of course, it's happened again that the iMac I'm sitting in front of has the same name as the online nickname of one of the people who I feel betrayed by. I don't know if I'm going to bother renaming it this time, however.