Sentence 1: Sharon decided to stay on campus for the holidays. 
 Sentence 3: A classmate noticed her moping around campus during the break 
 Sentence 4:  They talked and he insisted she join him for Christmas dinner 
 Sentence 5:  She ate with his family, played board games and had a great holiday 
 Given Sentence 2: The closer to Christmas, the more miserable she became.