It looks like someone didn't get the memo about Robert Pattinson and Kristen Stewart sticking it out and staying together after her affair this summer!

Cameron Diaz reportedly spent the night flirting with Rob on Oct. 27 at the LACMA Art and Film Gala, according to Us Weekly. The mag's witness even reports that Cameron was being "pretty obvious" about her interest in the Twilight star.

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"She was touching his arm, doing her big Cameron laugh at everything he said and trying really hard," the source explains. "He was polite, but not having it."

Pretty loyal for someone whose longtime girlfriend cheated on him with a married man just a few months ago! Rob and Kristen reconciled after the summer and seem to be stronger than every lately. Their most recent outing was at the after party for the premiere of Kristen's film On the Road. So supportive, Rob!

Do you think Cameron really has her eye on Rob -- or was this blown out of proportion?

Photos Courtesy of: Getty Images