I nominated Charlie and the Chocolate Factory (movie), Jurassic Park (movies), Finding Nemo, NCIS Los Angeles, Dogma (movie) (this was the only View Askew universe movie I found in the list? I was really thinking of Jay & Silent Bob in general, though) and Georgette Heyer's
The Unknown Ajax. It wasn't previously on the list, so if you're a Heyer fan, please consider seconding the nomination! Secondary character Richmond has a huge case of hero worship on his asshole cousin Vincent, who treats him cavalierly, then gets jealous when he pays attention to anyone else:
"I am aware. You have certainly become his beau ideal!"
"Nay, there's no hope of that," said Hugo despondently. "I'll never be able to take the shine out of you, for I'm no top-sawyer, and I'm sick everytime I go to sea."
Vincent laughed, but a faint flush stained his cheeks, and he said sharply: "Good God, do you think I care? Not the snap of my fingers!"
Having had ample time to become acquainted with his demon of jealousy, Hugo heaved a profound sigh of relief, and said: "Eh, I'm glad to hear you say that! The way you're never happy but what you have the lad at your heels, let alone the pleasure it is to you to listen to his chatter, I thought you'd be reet miserable!"
This response succeeded as well as any could; but although Vincent smiled in genuine amusement, he was still furious with himself for that instant's self-betrayal, and his temper, already exacerbated, was not improved. He had never felt more than tolerance for Richmond; and the boy's admiration had amused rather than gratified him. Had he arrived at Darracott Place to find that Richmond had outgrown his youthful hero-worship it would not have troubled him in the least; but when he saw Richmond's eyes turn away from him towards Hugo, and realized that, instead of following his lead, Richmond had drawn a little aloof from him, he fell a prey to a jealousy which none knew better than he to be irrational.
I'm not sure which one I'll request, though. I'm also thinking about Alfred/Lucius (Nolanverse Batman movies), David/Luke (Diana Wynne Jones's Eight Days of Luke), and Laurence/Tharkay (Naomi Novik's Temeraire books).