Austen Kroll slammed ex-girlfriend Madison LeCroy after a troll claimed she could do much better than him.After posing alongside his Southern Charm costar John Pringle for a photo earlier this month, Kroll, 33, clapped back at a fan who commented about LeCroy, 30, being better off without the two suitors.“Nog with the King,” Pringle, 45, captioned the original photo on December 13 of himself and Kroll drinking eggnog.Although fans watched Pringle but heads with Kroll on season 7 of the Bravo