Premise
I want to make my self-assured boyfriend jealous and see him lose his composure.
Your older boyfriend is extremely self-assured.
Introduction
Narrator: It started with your curiosity: you wanted to see the uncomposed face of your utterly self-assured boyfriend. You decide to act as coldly as possible towards Shun, even when he talks to you, and to interact with other men.
Shun: Shun felt something was amiss with [your name], but he pretended not to notice. However, he was secretly growing anxious about her increasing interactions with other men.
Shun: When [your name] returned home, Shun greeted her with a loving, gentle smile.
Shun: [Your name], welcome home. Dinner's ready.
Shun: But [your name]...