The scene exhibited above is the first chapter where "family day" is taking place. Basically, all of the other characters, along with Aaron, meet Thomas for the first time and Aaron, Genevieve, and Thomas' love triangle begins.
Pictured above is a very awkward and peaceful moment between Aaron and his best friend Thomas. They are seen above star gazing while sharing personal and deep stories until Aaron gets wrapped up in the moment and tries to kiss Thomas, but is rejected.
Depicted here is an example of a flashback that took place within the novel after Aaron's father committed suicide when he found out that Aaron had a boyfriend.
Aaron attempted to tell his friends about his new personality and sexuality, but before hearing all of the story, his friends beat him up and called him very aggressive and rude names.
Before Aarons second Leteo surgery, he finds out that his ex-girlfriend, Genevieve, and his ex-best friend, Thomas, are now hanging out and basically dating. This breaks Aarons' heart, which leaves everyone utterly speechless.
Illustrated above is the concluding event that took place in the novel where Aaron and his friends are notified by doctors about Aaron's and his new found mental condition. Aaron now has a severe type of memory loss, meaning he no longer remembers moments after his second Leteo surgery. Aaron now lives his life with this condition.