I think most A's lie to themselves and often hate the dependency of addiction and impulse control so they (myself included - I abused cocaine and alcohol many years ago and it made me an aggressive hurtful person) repeatedly hurt those closest to them
If he was abusing cocaine and alcohol this would only intensify his anger, aggression and self loathing. Only with quitting drugs and alcohol would you see any sign of realistic improvement
If he has not sought help he will continue to ruin everything and everyone in his life. You can only change how you deal with this addict. I wish you only happiness and health in the future.Please know you have mine, and the entire SR group, here to support you
Be Well