Sentence 1: Alyssa had a crush on Sam. 
 Sentence 3: She decided to ask him out on a date 
 Sentence 4:  He was very surprised and agreed to date her 
 Sentence 5:  Alyssa and Sam are now in a relationship 
 Option 1: She knew he had a serious girlfriend. 
 Option 2: She was not sure if he was interested in her.