Compulsive liars

I was thinking about people who cannot help telling lies, often to attract attention to themselves. We had one like that in my high school class. The strange thing is that I later met one of her non school friend and she said that outside school she wasn't a liar at all. What I thought at the time is that the competitive atmosphere of high school pushed her to build a web of lies to be somebody in that particular atmosphere, a need that she did not feel outside that particular community.
Am I a liar? Never in big style. Mostly I have lied to hide my absence of a life due to the nervous breakdown that was eating its way inside me. Nowadays I am becoming more and more honest I think. A side effect of therapy. For therapy to work you have to be painfully honest with yourself and with others. So not only no more "I am telling you that I am fine, but in reality I am dyeing inside" or "It's all other people's fault if my life is turning to ashes", but a painful honesty.
I still haven't got all the life I would like, but facing the truth is surely making more of it.