I don’t think God became “angry” with Adam and Eve. I don’t think God (who is love) is capable of anger in the sense that we understand anger. I think (notice I keep using the word “think”) God simply told Adam and Eve to leave the Garden of Eden and suffer the consequences of their sin which they committed out of free will. Punishment was inevitable and necessary. Even our earthly parents punish us for our wrongdoings though they loves us unconditionally. I think sadness, rather than anger, is a better word for how Adam and Eve made God feel.
God created us out of love, regardless of the fact that He knew many would fall and be damned to hell for all eternity. It’s the many that love Him in return and are saved that causes God’s great joy. He also knew in advance that many would love Him in return. He created man out of love, because God IS love and wanted to share His love. He could have made us without free will, but what good would that do? We would be incapable of loving Him in return if we were “programmed” in perfection and without having free will. After all, God made us to know Him, to love Him, and to serve Him in this world and in the next.
I once read (cannot remember where) that the reason for Satan’s fall was because he hated the idea of God sending His only begotten Son to be born of a mere human (Mary) and live among us. Satan thought God lowering Himself to our level was dispicable and, therefore, Satan’s arrogance caused his fall from grace and resulted in his being banished from heaven. This is mind-blowing because, as you stated, this means God knew what He was going to do even before man was created. By the time man was created, the devil was already banished from heaven, hence the incident in the Garden of Eden. This is so becuase God is not bound (as man is) by the elements of time. God is past, present and future all at the same time.
Keep in mind that God did not create evil, but He allows it because God can create immense good out of evil. For instance, without Adam and Eve’s sin, we would not have the Holy Eucharist; our greatest gift from God! He turned original sin into an opportunity for us to share in His divinity. What a blessing!
I hope my rather lengthy babblings were at least a little helpful.