Sentence 1: Jenna was very allergic to cheese which gave her migranes. 
 Sentence 3: Jenna was concerned to see melted cheese all over the main dish 
 Sentence 4:  She didn't want to hurt her friend's feelings so ate dinner anyway 
 Sentence 5:  She got a painful migraine and decided to be more honest next time 
 Given Sentence 2: Her friend worked hard making her a fancy meal and forgot the allergy.