"One should never trust a woman who tells her real age. If she tells that, she'll tell anything"
I remember that Oscar Wilde quote hehe but the sad thing though, once a person lied to you, you'll start questioning her credibility. What if theres more?
and did you find that out yourself? or she confessed it to you? Dig the reason why she lied and make sure shes not lying to cover up a lie.