The couple, who were married in May 2006, have a 5-year-old daughter, Harlow Olivia Calliope Jane.
Meanwhile Jennifer Love Hewitt has split from her fiancé Ross McCall.
A source close to the couple told People magazine: "They broke up over the holidays and have ended their engagement. They're both really sad about this. Even their friends are surprised; they seemed really happy. Everyone just wants the best for both of them."
What The El!?! Editorial:
I have to give Defamer props for the headline "Are TV's Favorite Juggsy Clairvoyants Doomed to Being Alone?"
Hysterical… however it is mean. I know at least one guy who would totally love to help Jennifer Love Hewitt get over her boyfriend and move on and get married. (He knows who he is!) As for Arquette, I don't know, she's seems a little too "artsy."
(Associated Press/NBC Dallas-Fort Worth)