The third episode of “The Real World: Cancun” aired last night, and Jim Kelly Jr. got cast mate Jonna on the phone at 7 a.m. to talk about life before, during and after The Real World. Highlights include Jonna spilling the beans about cast mates off camera, potentially joining The Duel after “The Real World”, the future doing club appearances, finding her on Facebook, hooking up on camera, showering in the kitchen…