Does a pathological liar make a person think that another person in their lie is a patholigcal liar?

Yes, it it fairly common for a pathological liar try to make another person in their lie appear to be the pathological liar. A pathological liar does not like being caught in their lies and may try to set the stage for someone else to take the blame. Some pathological liars believe their own lies and may try to blame someone else for a false statement so that they can continue to believe their own lie.