It's called "foreknowledge" Barry, and it's a very real and biblical doctrine.
Believers did not have an active "relationship" with the Lord before we were created, at least not in the sense that we knew about it...
We had His favor and love set upon us from the foundation of the world, and He "knew" us as His children at that point, when He set everything in motion.
The Lord chose a people, sent His Son for them, and set His favor upon them just as He did the earthly nation of Israel...
Only this "nation" was made up of people from every tongue, tribe and nation and was and always will be a spiritual nation;
Not yet a physical nation.
Israel, as a nation is simply an earthly picture of His chosen spiritual people out of those nations.
Here's a passage that I think demonstrates God's love for His chosen ( the whosoever believeth ( John 3:16 ), those that believe, from the heart ( Romans 10:9-10 ) ), and I believe that it does it very well::
" But God, who is rich in mercy, for his great love wherewith he loved us,
5 even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved;
6 and hath raised [us] up together, and made [us] sit together in heavenly [places] in Christ Jesus:
7 that in the ages to come he might shew the exceeding riches of his grace in [his] kindness toward us through Christ Jesus." ( Ephesians 2:4-7 ).
His great love wherewith He loved...who?
Track the pronouns, Barry.
Who is this letter addressed to?