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Maria Shriver and Arnold Schwarzenegger put their differences aside and reunited at their favorite Brentwood Italian eatery, Toscana, for a party to fete one of their son Patrick's friends.

An X17 photographer who saw the two inside the restaurant - where they used to share romantic meals - tells us: "They kept their distance. It wasn't like Arnold and Maria were making googly eyes at each other or anything. They were there for the benefit of their son but there was no reconciliation going on. They exchanged a few words cordially though."

With the divorce papers filed and Maria already closing escrow on her own West LA home less than a mile away from the family's Brentwood mansion, it's striking to see such a publicly estranged pair meet face-to-face for the first time since Arnie's love child scandal first broke in May.

The couple's 17-year-old son Patrick maneuvered his parents through the party, which appeared to be a graduation get-together, honoring one of his Brentwood School pals headed off to college.