You and Harry have been friends since you were about 5 years old and grew up together, and you were so close that people assumed you were "cousins." When you turned 11, a new member of the Dawson family named Leslie came on the scene, and you treated Leslie like she was your "little sister."
Now, you're older and Leslie went to college in North Carolina (Chapel Hill) and eventually moved down there. So, Henry asked you if you wanted to take a trip to Chapel Hill for North Carolina's "Homecoming" on October 5 weekend.
You go and end up staying at Leslie's house and she was so happy to see you since you were like a "big brother" to her, or so you thought.
However, Leslie told you in private that growing up she saw you as more than a "big brother."