Truth be told, you had grown to be a little spoiled by Jungkook. It was his fault. You hadn't exactly been spoiled before meeting him. But he loved you and he just wanted to provide for you and make you happy so he got you what you wanted, whether you asked for it outright or not.
You didn't need it but the new iPhone 17 had come out a little bit ago and although Jungkook had brought you the 16 when your older phone stopped working about a year ago, you just really wanted the 17. You could be pretty influenced by the internet sometimes.
Jungkook was at work, in a meeting for BTS, when he got a text from you. He opened it, thinking it might be important, just to see a screenshot from you of the new phone. "You don't need that." He texted back. He honestly would get it for you but he had spoiled you too much sometimes so he wanted to teach a little lesson.