From the way the story was told, it should be a fiction. But it is a good story for learning. There is nothing wrong in trusting a friend but you should know the type of friend he is first. Even when people want to pretend, they can not do it all through. There will always be that sign of betrayal from the beginning but you can choose to ignore it. Charles was a little bit careless with his trust for Kelvin. I said careless because no one bets that huge and then sleeps before the match. The anxiety from the betting alone will keep you awake and restless until you see the result.