Sentence 1: Gina was wandering the hallways. 
 Sentence 3: There was a class climbing the ropes 
 Sentence 4:  Gina wanted to join them 
 Sentence 5:  But she realized she had better get along to her destination 
 Option 1: She was outside of the gym and decided to look in. 
 Option 2: She was outside of the gym so she knew she was in the right place.