The woman we see at the end of this episode is not Libby...
*soap opera music*
It is her twin sister.
Again this is just my thoery but here is what I base it on.
* Who finds the manuscript on the beach called Bad Twin?... Hurley
* The actress playing Libby, Cythia Watrose actually has twins of her own
Cynthia Watros' profile page
* Hyperion books is about to release the fictional book by fictional author (Gary Troup)
Bad Twin
* Chances are the reason Libby is a psychotheripist has something to do with her twin sisters mental disability.
Please tell me your thoughts.