08/28/2006 at 09:00 PM EDT
Tom Arnold filed for a legal separation from his wife, Shelby Roos, on Monday, after four years of marriage, PEOPLE has learned.
When asked why Arnold filed for a legal separation, which involves a permanent division of assets, rather than a divorce, Arnold's rep said the couple may still reconcile. "He doesn't know what the future holds, but he does care deeply for her," the actor's spokeswoman, Staci Wolfe, tells PEOPLE exclusively.
Arnold, 47, met Roos, 34, a political consultant, in 2000 at the Democratic National Convention in Los Angeles. The couple married June 29, 2002 at the Four Seasons Hotel in Beverly Hills.
In the actor's separation documents, filed in Los Angeles Superior Court by Beverly Hills divorce attorney Neal Hersh, Arnold asks the court to treat the couple's Beverly Hills home, as well as all profits that Arnold had going into the marriage, as his own separate property. The papers provide no date of separation.
Arnold's previous two marriages ended in divorce – also after four years. The True Lies actor was married to Roseanne Barr from 1990 to 1994, and to Julie Champnella from 1995 to 1999.