Your original post led me to look up the definition of COMPERSION. A new word for me, but turns out to be something I have had spotty experience with.
Anyway I found this online while looking for the definition of COMPERSION and thought you might enjoy reading it.
It's much more than a definition. It talks about going THROUGH a jealous episode to the heart of the emotion to find passion...thought provoking and eye opening.
http://www.planetwaves.net/compersion.html