"He is very not un-pleasent to look at. When did this happen to AJ...?
AJ likes Gracie's bestfriend
Gracie and AJ grew up as really good friends since kindergarten that did everything together.
All of sudden Gracie thought of AJ as very handsome and attractive. Instead of the close friendship they had, Gracie wanted to be perfect in front of him.
One of Gracie's friend, Riley, likes AJ so she asks AJ's friend, Emmet, who AJ likes. Emmet told her that AJ likes Sienna, Gracie's best best friend, who is neither Riley or Gracie. This is important to the story because it is a situtation in Gracie's life that contributes to Coming of Age, which we are learning about. Gracie has to deal with heartbreak to mature.