updated 02/22/2013 AT 4:00 PM ET
•originally published 02/22/2013 AT 3:00 PM ET
There were likely no flowers or candy exchanged on Feb. 14 between Josh Brolin and soon-to-be ex-wife Diane Lane.
Lane signed her divorce documents on Valentine’s Day, documents filed in Los Angeles Superior Court reveal. Lane also cited Feb. 13 as the date of their official separation, although a source tells PEOPLE it was earlier than that.
“They’ve been separated for several months. This was a hard decision for both of them to make,” says a source close to the couple of their split. “The relationship just ran its course.”
The pair, who married in a 2004 ceremony at Brolin’s central California ranch, were first introduced by the actor’s stepmother, Barbra Streisand, at a party in 2002.
Brolin, 45, was recently arrested and held for public intoxication just before midnight on New Year’s Eve 2013, but he was released without charge.