Why Do We Care What "Our Ex" is Doing?

Why do we want to know everything our ex is doing after they breakup with us? Isn't it enough that we were dumped but now we want to know all the sorted details of how happy they are without us? Are we all masochists or are we hoping that we are the ones doing better without them!
Susan McCord @ http://www.vancouverdatingrelationshipadvice.com
http://www.beavertalk.com