All this happened, more or less.

May 16, 2007. KANSAS CITY, MO
Scientists at Hallmark Cards' Center for the Research and Development of Sentiments announced Monday that they had discovered three previously unknown emotions...

The first emotion the project successfully isolated was "requiapathy," the combination of relief and guilt that comes with the sudden realization that you no longer miss a dead loved one. That discovery quickly led to the uncovering of "seprudity," the feeling of appreciating a coworker's dedication without fully understanding his or her job function, and "trepatiousness," a synthesis of rage and jealousy, though more muted and often accompanied by a sensation of weighlessness.

http://www.theonion.com/content/news/hallmark_scientists_identify_3_new