The problem with some liars is that they are so great at it they can almost make the other person start doubting themselves. These deceivers spin crazy yarns with a lot of confidence, which is what helps them get away with their falsehoods more often than not.
This is what one woman faced after her boyfriend tested positive for chlamydia and tried to make her confess to cheating on him, even though she had never done so. She kept trying to catch him out in his lie, but he stuck to his story, which left her frazzled.
More info: Reddit
