S/He is the last person they thought they'd fall for.

S/He confuses the authentic and the fake. So s/he ends up thinking that totally fake things are the real thing totally fake depictions of virtue or real virtue or success or greatness or courage. After all, s/he says, a good person is rather boring, because s/he never changes very much. 

A reptiloid appears and talks about their theory.

"We have never departed you and your world. And the world is not as you think you see it with your two outer eyes. We do not see skies like you see skies. We see into the eye of the atom. And you know that when you smash an atom you see volumes of infinity emerging from that microscopic eye. We indwell, ourselves, our eye — we are interspacial beings coming out, emerging or slowing up our molecular rate that you might perceive us."