He has Traumas, trust issues, fear to be not good enough, he is a double face, he is mean, strong, insecure and bully when he is with people but when he is alone or with his family is weak, kind, insecure. He has a dysfuntional family, he is bisexual, but he says that he is straight to be "normal". Most of the time he is mad and he always get injuries because a mystery causes. 
When he feel that he can trust someone he will be warmer and kind, lovely and he could even smile. 