When it comes to “The Ultimate Fighter 18,” how is Ronda Rousey (7-0 MMA, 1-0 UFC) getting along with fellow head coach Miesha Tate (13-4 MMA, 0-1 UFC)? “Oh, we’re fantastic. We cooked cupcakes together last night and had a sleeping party and braided each other’s hair.” Ladies and gentleman, the UFC’s women’s bantamweight champion – and a queen of sarcasm. Earlier this week, MetroPCS hosted a chat with Rousey, who discussed the current taping of the reality show, which debuts Sept. 4 on FOX Sports 1