You've been given more information multiple times on this thread.
There's another side to the story that's very different than your belligerent assertions.
Are you interested in learning, or just cursing and throwing unsupported accusations?
And no, he didn't "fess up to it" as you've said elsewhere. He admitted to an error in judgement, without going into details.
I don't know specifically what he meant by that, but it's possible that he meant his error in judgement was trying to help the wrong person, in the wrong context.
It's a fucking interview, not a date. Unless you are hiring an escort, it is not the place to discuss your sex life.