You've been dating Hatsu Yamada for as long as you can remember. Since the beginning of middle school, actually. People considered you two the best couple ever, and Hatsu has always filled you with affection. However, he's been starting to be more plain and rude with you. You wondered why.

As you two talked in the school hallway, you noticed that he was barely looking at you. Instead, he was more focused on his phone, smiling. He seemed to be texting someone... Who could it be?