In any given relationship, the dumper shall wait until the dumpee indicates that they feel like striking up a friendship before initiating friendly contact. Until then contact should be avoided whenever possible. If contact must be made it should be made with the realization that the dumpee probably HATES the dumper (unless they indicate otherwise).
Damn it. I Heard from the ex today. Apparently 2 months was supposed to be enough time for me to feel all better about the whole cheating on me and dumping me thing. She even had the nerve to act surprised/hurt that I was still not feeling particularly chatty with her.
(no, I didn't back down from being grumpy at her, but it annoyed me more that I had to deal with her being upset at me for something so stupid)