He has antisocial personality disorder (as do the rest of them) and BPD (diagnosed in show). ASP is the result of trauma. Sociopaths are impulsive and prone to anger. They struggle to maintain relationships, careers, etc. Psychopaths can easily play along and maintain pretend relationships long term.
also worth saying that as he is a character and not all of the traits will be accurate to somebody with a true diagnosis..... but he does not fit the diagnostic criteria of a psychopath at all, and he exhibits sociopathic tendencies big time.