Shannon and David Beador’s reunion at a USC Trojans game was all for show, Breaking Celebrity News can exclusively reveal.

“Shannon and David weren’t really together at the game,” an insider told Breaking Celebrity News. “They were cordial, but they were definitely not together.”

“David left by himself,” the insider noted.

Breaking Celebrity News exclusively reported that Shannon, 53, and David, 54, split after 17 years of marriage in October, and she “broke down” over the breakup during the RHOC reunion taping.

Now, Shannon is going after full custody of Sophie, 16, and twins Stella and Adeline, 13. David will get visitation with the girls despite pleading guilty to battering his wife in 2003.

Their marriage began crumbling in the public eye years later in 2015 after David cheated on Shannon with bombshell Nicole McMackin . The aftermath became Shannon’s storyline on the Bravo show.

Stay with Breaking Celebrity News for more.