Are you sure she's being cocky or are you just mistaking confidence?
Did you see it? If she just talked about how she was confident she was going to win that is one thing. She talked about beating up 2 or 3 guys in a movie theater. It sounded like they deserved it, but still. She also got fired up about Cyborg, talked about the tweet thing, and quoted it. Basically said Cyborg's arm was coming home with her next, if she hadn't cheated. Again which is true, the cheating part anyway, I think she might be biting off a little more than she can chew with Cyborg. It could have been the venue, the show is not really serious. In this interview she came off, to me anyway, as cocky.
Not really saying it was a bad thing either.