If hell is simply "separation from God," then wouldn't nothingness a complete lack of existence be more fitting for those who reject Him?

If good and evil are constructs that exist because of God, then complete nothingness (non-existence) could be a more logical consequence for those who reject Him, rather than eternal suffering. In this view, consciousness itself is a gift, and rejecting the source of that gift could mean forfeiting existence entirely.

And for people saying that hell is a form of divine justice for the natural consequence of your action. then shouldn't hell be more temporary than eternal, since no action should promote eternal suffering?