Is this true that Taylor Swift hasn't ever met Tim McGraw before she wrote this song 'Tim McGraw'?

If She hasn't ever met Tim McGraw, what is this song 'Tim McGraw'?
She just dreamed about it and imagined like he'd said 'the way your
blue eyes shined put those Georgia to shame that night.'? And she put
them in her song? Is that it? Is there anyone who wants to let me know
about it?