Have you talked to his family about this?

Of course, im merely asking and perhaps it's not a wise suggestion as his family is more likely to side with him if they're unaware of his behaviour. But if they are, maybe it would be in your interest to do so? At least you'd have a real life support system. Of course, only you know whether this would be a smart decision since you're more familiar with their personalities and such.

Furthermore, have you two actually comprehensively discussed his behavior beyond just an apology?

Do you intend to divorce? Barring any further context, that is probably the best decision whether you think he can change or not.