He and Aria have a fling at a party so they get drunk and sleep together. They confide in each other about their recent problems. He tells her to confront the jerk who broke her heart and to get him to leave her alone. Aria takes his advice.
- He is the second character to be named "Riley".
- The first one was a female minor character who Hanna dealt with constantly in the books.
- He was Aria's rebound from Ezra, after his betrayal.
- Aria and Riley meet at a tour of Syracuse University.
- The actor portraying Riley, Nick Roux, and Lucy Hale who portrays Aria both made an appearance in the Disney show Wizards of Waverly Place although not at the same time.