UFC women’s middleweight champion Ronda Rousey says coaching season 18 of The Ultimate Fighter has been emotionally taxing and tiring, but the experience exceeded her expectations. Rousey (7-0) was named the first female coach of the popular reality show and was originally supposed to coach opposite Cat Zingano .  Zingano earned the opportunity to coach The Ultimate Fighter and solidified her place as No. 1 contender to Rousey’s crown by defeating Miesha Tate in April.  A knee injury, however, forced Zingano off the show and out of the anticipated title fight with Rousey. She was replaced by Rousey’s longtime rival, Tate. During the UFC 161: Henderson vs. Evans media day on June 14, UFC president Dana White said the filming of this season of the reality is going “bad.” “Miesha and Ronda hate each other,” said White. “It’s like literally crazy drama every day.” For Rousey, coaching has been more work than she anticipated. “It’s a lot more work than I thought it would be, and it’s a lot more emotionally taxing than I thought it would be.  You care a lot about these kids.  I just felt like any kind of heartbreak or triumph, whatever they’re going through, I share in it.  It’s exhausting going through that over and over and over with every competitor,” she said during a Facebook chat sponsored by Metro PCS on Wednesday