He should have known from the start that there was no mutual love here from the beginning of the relationship.
Chuuya decided to enter into a relationship with Dazai, and after a month he began to notice strange things, even though Dazai reciprocated his feelings, he acted as indifferent as possible to their relationship, Chuuya often saw him with girls with whom he flirted, he did not pay attention to it at first, because flirting is not cheating, but then he began to think that Osamu wants to make him jealous. Dazai often asked Chuuya for money to buy alcohol or something else.Chuuya couldn't refuse Dazai, he really loved him.
The red flags from Dazai were noticed only after two months, Dazai often disappeared outside the house, he never answered his messages or calls, talking about girls, all this was very unpleasant for Nakahara, but he kept quiet for now.
Dazai really changed a lot after a few months with him, at the beginning of the relationship he was more attentive to him, but what went wrong then? Did he get bored with him? Did Dazai think he was a toy to play with and throw away? All the bad thoughts were going through Chuuya mind. Maybe he should talk to Osamu about it sometime.
Chuuya decided it was time to talk to Dazai when he once again came home late at night
"You come home too late again."