Like

you passed through an alley at night to get to your house, but you saw that dabi was leaning with his back against the wall smoking a cigarette, enjoying the peace of the night. you just looked at him for a few seconds but you ignored him and You kept walking, you decided not to tell the police that he was here, you just didn't do it for some reason.
So a few weeks passed, you passed the alley every night and Dabi was there, until one day Dabi asked:

Hey, who are you? Why do you pass by here every night? And why do I feel like you're not afraid of me?