UFC bantamweight champ Ronda Rousey hasn’t hidden the fact she’s worried about the way she expects to be portrayed when Ultimate Fighter 18 hits the airwaves in less than two weeks. Though some might wonder if Rousey’s anxiety is a marketing ploy to make people tune in, opposing coach Miesha Tate recently made it clear “Rowdy” Ronda has good reason to be concerned.

Tate held a chat with fans on Friday where she addressed the upcoming season of TUF and Rousey’s behavior in particular.

“I’ve had people I’ve worked with before that I didn’t get along with or whatever, but never to this extent. I don’t know what her reasoning was for it, but at one point she just flipped a switch and she just became this mega-bitch. For the rest of the season, it was just horrible having to deal with her,” said Tate in a conversation captured by MMAFighting.

Asked to explain Rousey’s antics, Tate compared the unbeaten champion to a bully.

“Ronda has been the ‘cool girl’. A lot of times the bully in school is the ‘cool person’, but when you grow up and start to realize that’s not cool, people will see the truth. They’ll see why it’s been impossible for me to like Ronda,” Tate revealed. “There’s no way I could possibly like her. She’s been incredibly rude to me from the very beginning. That’s how our rivalry got started. It’s not going to change with her attitude. She was very disrespectful on the show. I think that’s what she’s more worried because honestly, her true colors came out in that six weeks.”

The 13-4 Tate will have a chance to stand up to Rousey on December 28 when the two colliding co-headlining action at UFC 168. The bout will mark Rousey’s second defense of the divisional strap.