Every theological discussion I’ve had with a liberal Christians has always boiled down in the end to the liberal position rejecting one or more sections of the Bible and their traditional/conventional understanding in the church going back to first-century apostles. As I understand the problem, once you start to reject a part of Christianity it isn’t long until the remainder of your beliefs are eroded away. We see this today in the Canadian pastor (Gretta Vosper) who doesn’t believe in God and in the writings of the like of John Shelby Spong. In this sense it is a continuum with one pole being accepting everything 100% and the other pole rejecting everything 100%, with many points in between. The act of questioning and rejecting Biblical beliefs to move from 100% believing to anywhere else on the continuum does mean you are more likely to question and reject more of the Bible.
As to the second point, I was essentially paraphrasing the Scriptures where the apostle John states: 1 John 2:18–24 Children, it is the last hour; and just as you heard that antichrist is coming, even now many antichrists have appeared; from this we know that it is the last hour. They went out from us, but they were not really of us; for if they had been of us, they would have remained with us; but they went out, so that it would be shown that they all are not of us. But you have an anointing from the Holy One, and you all know. I have not written to you because you do not know the truth, but because you do know it, and because no lie is of the truth. Who is the liar but the one who denies that Jesus is the Christ? This is the antichrist, the one who denies the Father and the Son. Whoever denies the Son does not have the Father; the one who confesses the Son has the Father also. As for you, let that abide in you which you heard from the beginning. If what you heard from the beginning abides in you, you also will abide in the Son and in the Father.
As to whether Raven once believed sincerely and fell away or if she fell away because she never actually had a saving faith in the first place, I do not know. But I do know that the Word of God is true and that what the apostle John wrote stands. If Raven had been a Christian in truth, she would not have fallen away from such heartfelt beliefs. Salvation requires more than a mere intellectual assent to the facts of the death and resurrection of Jesus Christ. This is good because it means there remains a place for hope and repentance.
Luke 8:18 So take care how you listen; for whoever has, to him more shall be given; and whoever does not have, even what he thinks he has shall be taken away from him.”