Robin Thicke's antics with Miley Cyrus at last year's MTV VMAs did irreparable damage to his marriage to Paula Patton, according to TMZ.

And here I thought it was that outfit.

No, apparently Patton wasn't pleased when her husband simulated sex with a crazed 21-year-old in front of millions of people.

Sources connected to the couple told TMZ that Patton felt "utterly disrespected" by Thicke's routine with Cyrus. Reportedly, after the performance, Patton got into a huge argument with Thicke, telling him he insulted her before a huge national TV audience.

The website reported Patton was especially angry because she had no idea the performance was coming. Cyrus apparently improvised the raunchy part without warning, but Thicke played along, which his wife didn't like much.

Paula Patton and Robin Thicke arrive at the 2013 Vanity Fair Oscars Viewing and After Party at the Sunset Plaza Hotel in West Hollywood.
Paula Patton and Robin Thicke arrive at the 2013 Vanity Fair Oscars Viewing and After Party at the Sunset Plaza Hotel in West Hollywood. (Photo by Jordan Strauss/Invision/AP)

Sources reportedly said Patton then went nuts when she saw the infamous picture of her husband backstage with his hand on a woman's rear end.

That was supposedly the beginning of the end for the couple. They began arguing constantly, and Patton was angry that Thicke continued to party at various clubs with various women.

Yeah, that might do it.

Patton supposedly informed Thicke she wants a divorce last Friday, prompting him to cancel concerts and fly to Canada -- where Patton was filming a movie -- to try changing her mind. It didn't work.

Contact Tony Hicks at Facebook.com/BayAreaNewsGroup.TonyHicks or Twitter.com/insertfoot.