Sentence 1: Sean and Sara had just gone on a date. 
 Sentence 3: Suddenly, Sean leaned over and hugged Sara 
 Sentence 4:  Sara was caught off guard and didn't  know what to say 
 Sentence 5:  Before she could react, he walked away 
 Option 1: Sara got so shy she ran away. 
 Option 2: They were both nervous as they said goodbye.