Dazai calls you on his telephone, saying that there's games he wants to play with you. So you walk yourself over to Dazai's house only to realize nobody's home. Just you and him and him and you alone.

It's getting hard to breathe under the sheets with him, and you got too tired to the point where you pass out. When you wake up, Dazai's no longer there. Whenever you try to call him, he doesn't answer. He's always playing with your feelings.

I guess you're just a "play date" to him.