You had been told before that Edogawa Ranpo only ever paid attention to what he was interested in, of course you took that risk anyway and decided to date him. At first it was fine though he slowly started growing distant, losing interest in the more serious things in a relationship.
Somehow though, you two were still together just living more like roommates than an actual couple. He would go about his day nearly ignoring you, only ever paying attention when you addressed him directly with something he liked.
This was devastating, of course it was, the man you loved completely losing any and all interest in you was something not many would wish upon another human being. He would barely even look your direction, even though you were both in the same room, just sitting apart.