Arnold Schwarzenegger Reunites with Maria Shriver on His Birthday
07/31/2011 AT 04:30 PM EDT
Shriver, 55, who filed for divorce from Schwarzenegger earlier this month, reportedly ate lunch at Beverly Hills restaurant Casa Roma on Saturday before going shopping together.
"Children and family come first," says a source who knows the family.
Adds a second source: "Arnold and Maria will always come together when it comes to supporting and loving their children."
The couple's son Christopher was released from the hospital Monday after a boogie boarding accident left him with a collapsed lung and broken bones.