I'm roughly 85-90% finished with a novel that I've been working on for quite a while now, and something interesting (and maybe troubling) has happened. My hero and the main antagonist were on a collision course for much of the story, but when they finally met, the villain was so charming and charismatic, and the hero so naive and confused, that the two kind of hit it off. So here's the thing. For the first half of the book, my hero, Will, is told by a number of other characters how terrible this fellow is. It's even suggested that this antagonist is responsible for the death of Will's immediate family as well as attempts on Will's own life. However, Will begins to distrust the people feeding him this information, and when he meets this "big bad", he turns out to be not at all outwardly monstrous (plus he has a lovely daughter, which helps). Of course, true colors show and they don't exactly skip off into the sunset together, but with Will's main flaw being his naivety, is it completely unbelievable that these two characters should get on so well at first? Has anyone experienced a similar situation in their own writing?