Does he know?

Dylan and erlin are best friends,but when a new student named harry is in the picture,Dylan feels jealous and realizes his true feelings for erlin. Erlin starts to develop feelings for Harry,and she talks to her best friend Dylan about her feelings.Dylan tells erlin to make sure that before she lets this guy in,she needs to make sure that he knows her.Her favorite color,her favorite band,her favorite places.In this story,you will find out;Does harry know erlin as well as Dylan does?