Actor Jim Carrey’s former girlfriend, Jenny McCarthy, has officially broken up with her body builder boyfriend Jason Toohey after dating for only four months. The two are from completely different worlds and are apparently incompatible, but they will remain good friends.

Jenny McCarthy’s New Boyfriend Jason Toohey (PHOTOS)

“He couldn’t handle her fame and the amount of attention she received, so she ended it,” an insider explains. A rep for the 38-year-old model mom tells In Touch, “They are on good terms and will remain friends.”

Jenny and Jason started dating too soon after she split from her longtime boyfriend. The two tried to live together for some time but she dumped him right after presenting the American Music Awards late last month (November 21).