Sentence 1: Marcus had a crush on his best friend. 
 Sentence 3: She told him to stop, he was like a brother to her 
 Sentence 4:  Then he tried to talk to her about his feelings 
 Sentence 5:  She said no because she didn't feel a need to have sex with him 
 Given Sentence 2: First, he went to her house and got in bed with her.