Libby Smith- Sims 3

Libby Smith(In case you didn't already know is her name) is, and I think we can all agree, is the most mysterious character from LOST because she, and Charlotte, were the two main characters that never received their own flashback episode. Although Charlotte's life was explained during the time flashes and her telling Daniel about her life. Anyway Libby is the Queen of Flashback Town though, she appeared in the mental institution along with Hurley and had coffee with Desmond and was in came between Eko and Charlotte Malkin when they were arguing. This July we found out two of the three big Libby questions, one was her last name and the other was why she was in the mental institution(In case you didn't already find out but, Darlton confirmed that the reason of why she was in the mental institution is because she went into mental shock after her husband died). So anyway we have ONE big Libby question left, WHY WAS SHE ON THE PLANE? I really have no theory but I did hear one theory that said she was on the plane because she was following Hurley but I think she was on a business trip or something simple.