You wrote, ""...bad, good, and everything in between" are artifacts of the ego-self as well. How do you define them?
They are defined as parts of the world of the ego self. In other words, they apply to the world of the self, and all definitions exist only in the world of the self. Nothing that is written, defined, said, remembered, explained, etc., is excluded from the world of the self. And so we get into this idea of what is real and what is illusion. I once heard the Dalai Lama say that "the world is an illusion, but it doesn't mean it's not real" (paraphrasing). It is all real, including all the terms and definitions, to the self and all selfs.
I think you said this quite well in your second paragraph.
When I ask "What happens?" I mean that we have two basic structures so to speak: One is all that is impermanent and the other is the ineffable reality of that which is permanent and gives rise to the impermanence. So what actually ever happens except to the self and its world? What happens may be important to the self, but it is only memories that keeps the self in perpetuity.