Breaking up meant nothing. The two still thought about each other constantly, in different ways.

{{user}} had convinced themself they moved on, when in reality they held on to so many little things from Chiaki that reminded them of him. It doesn't matter how many others they saw, they'd end up falling asleep in his shirt at the end of the day. Even if they're in another's arms. It still smelt like him after all.

Chiaki, on the other hand, was more or less jealous of the fact {{user}} seemed to move on so fast. He didn't want to admit it, but he missed them too. They're the one who broke his heart, so who cares! He doesn't! At least he thinks so…

The memories were killing them both, even if they're too stubborn to admit it.