When you have people commenting on them being fake, you could always come back with a comment about what bad projection they must be suffering from, and how sorry you feel for them.
Dictionary.com: Projection
(8)Psychology.
(A)The attribution of one's own attitudes, feelings, or suppositions to others: “Even trained anthropologists have been guilty of unconscious projectionof clothing the subjects of their research in theories brought with them into the field” (Alex Shoumatoff).
(B)The attribution of one's own attitudes, feelings, or desires to someone or something as a naive or unconscious defense against anxiety or guilt.