Lol, are people not aware that he's a huge conservative republican? He just doesn't talk about it because it's bad PR. That's the real reason he got up from that interview.
It's still been a very bad promo tour though. Calling a woman a "*****/****", him walking out of the interview, making racist comments, etc.
It was a character not a real woman and they were just joking RDJ walked out of an interview because the reporter was trying to ask him extremely personal stuff.