Again, this strikes me as a singularly foolish debate, since only God can see the heart. I also don't believe in a reductive one-and-done, say-the-magic-words salvation. The Christian walk isn't a neat three act drama of miserable sinner, salvation, happily ever after. My own Christian walk has been far messier, far more complicated, far more doubt-ridden, and far more traumatic. But I try to be ruthlessly honest with God, and I believe he sees my heart. It isn't always easy, but God has always provided for me, always led me, and never has he abandoned me, even when I have been unable to feel his presence. I would put it to anyone struggling in their faith reading this that the very act of struggling is evidence of salvation (though again, obviously this can't be proved either way, so absolute assertions are foolish).