Bipolar is a condition in which a person has periods of depression and periods of being extremely happy or being cross or irritable. That is exactly what he was. He was Bipolar.
Some days were worse then others, his moods would often switch. He would act like he had many personalities; but he really only had one.
Intermittent explosive disorder is a behavioral disorder characterized by extreme expressions of anger, often to the point of uncontrollable rage. He was like that too, he got angry so quick, he became frightening to everyone; some say he could kill..
But that didn't stop Belle from anything..
remember...
curiosity killed the cat.