I disagree COMPLETELY with the above statement. Snakes do not ¨pick favorites¨ and they do not always know best, because they rely on their instincts, they do not automatically know that the person handling them is not a threat, even though this is (usually) true. I´m sure your boyfriend did nothing, maybe he made a loud noise that spooked the snake, or maybe the BP is not quite accustomed to handling yet. Seriously, ¨more likeable¨? That is RIDICULOUS advice. With regular handling the snake will become comfortable with humans.
sounds like you need to teach your boyfriend on how to be more likable. snakes always know best, it's his fault if your ball python doesn't like him, obviously. i mean like, what was the point of this post? that's common knowledge.