Look at it this way, they sinned they did what every kid does when they are wrong. They ran and hid from their Father, Right. Now God asked them who told you that you were naked. Now we know darn well God knew why, RIght! Now God gives them every chance to confess their sin, but instead they run and hide and then start doing what my kids are FAMOUS for. Put the blame on eachother. Then he does what our kids do next try to blame us. Remember you gave the women to me. Now its Gods fault. Then ol eva blames it on the devil. he made me do it. See thats where we got that saying. The devil made me do it
It was by their sin and refusal to admit to their sin that brought the house down on us. Sin is why we suffer. Now it wasn’t fair but it is what it is.
Now God promises us someone to save us. Now it wasn’t fair either that Jesus had to pay for not only adam and eve, he had us on him too. see what I mean?
Now remember Adam and eve had original holiness for all human nature. Until they sinned then it was original sin for all human nature. Until Jesus came. he wiped out original sin. So now we are back to square one. If we sin, its on us. If we don’t we are in the Grace of God. But we like Adam can run and hide, or blame others for our sin, or face up go to the Father (the Priest) like adam should have and own up. Repentance involves a change in our thinking and way of life. Now all of a sudden suffering isn’t a evil anymore. Its a way we can make amends with our sin.
Now we get 2 more trees in a sense. Cain and Abel. One is good, one is bad. Another good seed, vs bad seed. Oh and the race goes on.
But you are on the right page. If they would have reconciled with God it would have been fine. But they didn’t. But even if they did and stayed in Eden they could not eat from that tree to have everlasting life. But the Tree of Life in the N.T. we must eat from.