Personally, I'd say you ought to focus more on why you found yourself falling for it rather than why she finds lying comfortable.
It was a post inversely gushing about a woman in his life who knew how to throw him for a loop with lies. It was pretty low-grade butt hurt where the aim was to ask if she was a bad person through the use of clinical labels for doing something that everyone does to an extent instead of questioning his own gullibility. Pretty run of the mill predictability with the room to repeat the same mistakes in the future.
No idea what was typed in the initial reply.
Edit: Gush in the sense of: v. To worship something excessively. To spout off verbally over how much you like something.