From Us Magazine -Spencer Pratt given six week leave of absence to attend anger management classes.
A source tells the magazine that Spencer's absence from the show will only be for six weeks, and it will primarily be so he can take part in a weekly anger management class. Why? Pratt reportedly threatened "to kill" one of the show's producers after she made a suggestion he was unhappy with. In the end, the classes were a compromise after it was initially suggested that Spencer would be thrown off the show:
"The show agreed that Spencer would leave 'The Hills' for six weeks to do anger management training once a week at home. If he completes it, he can return to the show."
Spencer's story, meanwhile, is that he has aspirations beyond just a TV career and wants to help his country be a more safe and secure place.