Mandela lived half of his time in 'prison' in a mansion. He was treated like someone that was in a hotel. He was offered freedom, but had to sworn off violence. He preferred prison, so, he didn't want to sworn off violence.
Mandela does not feel sorry. He was a terrorist at the time and terrorists FEEL nothing. He still feels nothing, just pretending. You should live in the country to know him 'better' and his 'followers' too.