My concern here is that you're accepting his behaviours by making false threats. If you're threatening divorce "every single time" then in his head, I bet he thinks you're just blowing off steam because you haven't divorced him yet.

If one were to have zero tolerance, as you've mentioned, they would have responded to these behaviours by leaving.

Don't get me wrong.. I completely understand where you're coming from and the internal struggles you're dealing with. I'm not at all judging you. I'm just looking at this from his angle. He's hearing empty threats "every time" there's an issue so to him, it means little... just 2 people having an argument.

I'm also not sure what "just one more time" means because you've been saying it throughout this thread. There's been new situations arising throughout but you're still present. It's confusing to me and undoubtedly holds no weight for him. Try and consider how your behaviours and threats mean to him.