What if he gets addicted to cocaine and beats her?

I sincerely hope she will leave him if he turns out to be a sociopath and refuses her pleas to help him recover from his anti-social behavior. It still doesn't logically follow that she should find someone even worse potentially to be with if this happens. What if she starts abusing cocaine as part of the culture of the type of people she sometimes must associate with in her work? I have more faith in both she and her judgments in others, even with confounding factors like facial-bias. Her husband is likely a really good guy, I trust her trust.