Shereé Whitfield's ex-boyfriend suddenly showed up and refused to apologize for standing her up on camera on Sunday night's Season 14 finale of The Real Housewives of Atlanta.Tyrone Gilliams walked in as Shereé was stressing out over last minute details for her She by Shereé fashion show.'We probably need to have a conversation,' Shereé, 52, said. 'You just pop up.