Sentence 1: Robbie had just started his first job at the restaurant. 
 Sentence 3: Susan was several years older than Robbie 
 Sentence 4:  She always flirted with Robbie whenever they would see one another 
 Sentence 5:  Robbie was crushed when Susan turned down his invitation to the prom 
 Given Sentence 2: He became friends with a cute waitress named Susan.