#3 Her talk of 'being professional' might be a way to align her with Stephanie McMahon/Triple H
When Rousey first debuted with the WWE, it was to oppose her enemies Stephanie McMahon and Triple H who she thought was trying to manipulate her.
It worked well because fans will always cheer against the Authority when they are featured as heels looking to hold people down.
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A lot of Rousey's words were true when she said that champions should be respectful, professional and appear to defend their title against any and all challenges at any time.
But in WWE, when you start to toss around 'professional' in an arena where Stephanie McMahon and Triple H are concerned, it sometimes foreshadows an alliance with the Authority figures.
Superstars and athletes should be professionals, but in WWE, that can often mean 'corporate' and it often has a negative connotation in WWE.
Mr. McMahon held down Steve Austin and Daniel Bryan because they didn't fit the mold of a corporate champion and Lynch has interpreted that as her fate now.
Stephanie was in the right when she said Lynch should see a doctor, but the reluctance to do so is a storytelling device to get Lynch over more.
Since Ronda Rousey still believes in acting like a professional even though she has acted the same as Lynch sometimes (like interfering in the TLC ladder match), her desires might start to line up with McMahon and Triple H.