I saw the video yesterday, Rivera said words to the effect of "You know Mike, 80% of all Koalas in Australia have [an STD, I forget which one]. So be careful Mike"

Bisping's girl is Aussie, so he clearly meant that as an insult to her. That's bullshit, he crossed the line with that one. But it still wasn't all Bisping made it out to be, either. Everything else Rivera said was about Bisping's fight style, and thus fair game.