I don't really know 'when' exactly. It's a series of moments rather than one defining moment. There are others who have spoken to me in the same way as you had. There are 6 total. I have met the both of Them in addition to your source. Plus, there's Brian and another, whom I think, still consort with your same source. Oh well. All things work for the good of those...
You know he's a liar, right? "A lie, the truth, which one shall I use? Whatchya gonna do? I know."