Sounds neat, b-d, but let's face it: the Bible distinguishes very clearly between God's (fore)knowledge and creation. For if Adam was alive when God knew him (before the foundations of the world) He would have no reason to make him.
Genesis tells us that at one point in time, God created Adam and breathed life into Him, and Adam became a living man. Before that time, Adam did not exist except as God's foreknowledge. God has foreknowledge of our life and death and our ultimate destiny, yet that foreknowlege is not played out yet. God devised the world in such a way that it must play itself out.
Perhaps your wife might conceptualize it better if you tell her it's like deciding to have a baby and actually having it.
And yet He knew him and yet He made him.
Those are Scriptural facts some of us might not be able to reconcile, but we can't erase them.