Season 3, Episode 7 - Season 3: Episode 7 (Rotten to the Core). Original air date: 2/12/13. Abby indefinitely suspends Christi and Chloe, which keeps Chloe from competing against Cathy's new all-boy team "The Apple Cores." Nia and Holly must deal with a painful medical condition from their past. In the meantime, Abby's favorite new dancer Sophia returns. Check out "Dance Moms" photos and extras!