#Artemis learns radical acceptance around Juliet's love for Weezer and Creed (in part because Beckett shares that love unfortunately)

[orangerosebush]

Ive always had this headcanon that artemis was very cold to juliet growing up to distance himself from anything child-like as much as possible since being friends with another child who doesn't share his intense Parentification traits and as they get older (like mid 20s) artemis is finally self aware enough to be like "hmm i probably treated her like shit for a long time and didn't even think about it cause I was so focused on crafting this impenetrable image of a Fully Functioning Adult since I was a literal toddler".

IIRC, the most intimate look we get into Artemis and Juliet's dynamic is in the first book -- and like, everything about them in B1 is bizarre.

I share the headcanon you mention -- and that past is made worse by the fact that Juliet (~16 y/o) was the main person in charge of Angeline's care when things progressed so severely that the woman was bedbound.

There's a tension between Artemis allowing Juliet to take liberties that he'd typically only permit his mother (and Juliet wanting to take those liberties!), and Juliet being freaked out by how intense (arguably creepy) Artemis used to be.

Here's this scene from the start of the book (where Juliet is able to use the diminutive "Arty" during a time when the Fowl-Butler dynamic is such that Butler still calls 12-year-old Artemis "Sir"):

“These alterations must be made to the cellar. See to it, Juliet. To the letter.”  “Yes, Arty.”  Artemis frowned, but only slightly. For reasons that he couldn’t quite fathom, he didn’t mind terribly when Juliet called him by the pet name his mother had for him.  Butler scratched his chin thoughtfully. Artemis noticed the gesture.  “Question?”  “Well, Artemis. The sprite in Ho Chi Minh City . . .”  Artemis nodded. “I know. Why didn’t we simply abduct her?”  “Yes, sir.”

Then:

“Juliet pointed to a viewcam mounted on the wall.  “Oh, he’d find out. Artemis finds out about everything.” She leaned in close to [Holly]. “Sometimes I think he can see inside my head, too.”

Though! It must be said that canonically Artemis gifts Juliet multiple expensive (sports?) cars when they grow*** up. Their dynamic contains multitudes

*** I misremembered. Artemis leaves her the cars in his will. Well. LOL. ("To Juliet Butler, who has protected my brothers so faithfully, I leave my sound system which is based on gel-speaker technology and which should make even her collection of modern music sound reasonably non-offensive. I also leave to Juliet the three sports cars and a lifetime subscription of the Wrestling Channel.")