What makes you think she is wrong when all of "Paul's Gospel" was written to Christians, regardless of culture, creed or whatever, as it spoke of intimacy with God, the how to's of it.
First of all, her attitude toward what Paul wrote is this:
Paul's teachings are not essential for salvation, but it is some nice to know stuff for the curious.
That includes the name of Paul. Paul's gospel has confused more than one person. Nothing in Paul's gospel is essential for salvation.
and you ask me what makes me think she is wrong? I've shown why she is wrong citing scripture which she and apparently you, reject.
Secondly, the Romans were not saved at the writing of the epistle to them, but is written that they be established by Paul's gospel (the gospel of Christ). You should read it and see.
It was an expounding of what Jesus put forth in John 17:3ff. It was not about being saved by grace but the afterwards of being saved by grace.
As I have shown over and over, Paul's gospel is the preaching opf Jesus Christ, according to the revelation of the mystery, that was kept secret since the world began,...(Romans 16:25-26 KJV) and Paul tells us why. It is the hidden wisdom of God in a mystery!
1 Corinthians 2:6 Howbeit we speak wisdom among them that are perfect: yet not the wisdom of this world, nor of the princes of this world, that come to nought:
1 Corinthians 2:7 But we speak the wisdom of God in a mystery, even the hidden wisdom, which God ordained before the world unto our glory:
1 Corinthians 2:8 Which none of the princes of this world knew: for had they known it, they would not have crucified the Lord of glory.
It is not the WHO of Jesus Christ, but WHY Christ died!
1 Corinthians 15:1 Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand;
1 Corinthians 15:2 By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.
1 Corinthians 15:3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
1 Corinthians 15:4 And that he was buried, and that he rose again the third day according to the scriptures:
It is the gospel that Paul received by revelation of the risen and ascended Lord Jesus Christ that made an unscheduled appearance to Paul on the road to Damascus (Galatians 1:11-12 KJV). It is the gospel that Paul preached as the power of God unto salvation to every one that believeth to the Jew first and also to the Greek (Romans 1:16 KJV) and is now preached to all men without distinction that they too can be saved (Titus 2:11 KJV, 1 Timothy 2:4-6 KJV). It's due time you and Jamie believe it is the power of God to save you and trust the Lord believing it. It's your only hope for salvation!