Keep in mind that AA is mainly outright abusive when the player argues with him and says things he doesn't like. It is possible to avoid outright abuse from him. There are still red flags, but for the most part he prefers manipulation. He might even be happy if he doesn't have to be manipulative. If you're on the same page with AA, he can seem content for the rest of the game, with no abuse other than some red flags. The red flags being that he objectifies the player and control from him is mandatory. I do not like the idea that AA willingly goes to Avernus when he would break up with Karlach after failing to turn her. But they seem to break his character to make it possible... so why not other scenarios?
