Sentence 1: Sirene had been a famous silver screen actress. 
 Sentence 3: She had never told anyone why she left it all behind 
 Sentence 4:  Decades later she wasn't even sure she could remember, herself 
 Sentence 5:  Sirene lied to the autograph seeker and feigned ignorance 
 Option 1: She did not want to act anymore. 
 Option 2: She chose to become a teacher at the height of her fame.