Adam knew, at some part of his mind, that Harry lives in the same building as where he and his father live in. The rooftop is off-limits to non-residents after all. So it shouldn't have come as a surprise that he would eventually see the younger man in the hallway.
But it was, because Adam should only meet Harry on the rooftop during Mondays and Thursdays at precisely 8:30 pm with Adam's telescope and the stars above them.
"Hullo Adam." Harry greeted him with a smile.
"H-hello Harry."
And then Harry left with just that greeting and Adam relaxed. He thought, for a moment, that Harry was going to stop to talk to him for a while. From what he had noticed, that's what friends do and Harry had said they were friends. Adam was glad it was only a greeting, a polite thing to do.
.
"Good morning Adam."
Adam startles and turns to the familiar voice.
"Oh, and to you as well Mr. Raki."
Adam only hesitates for a bit before managing a stilted "good morning Harry" followed by his father repeating the greeting as well.
And then just like the day before, Harry merely smiles and continued on his way. Adam blinks as he watched Harry go up the stairs, wearing what looked like jogging pants and an oversized sweatshirt. But he was going up the stairs so maybe he just came back?
"Do you know him?" His father asked him.
"Yes." Then as an afterthought, Adam added, "We're friends." Because saying it makes Adam feel warm again.
His father raised an eyebrow but didn't say anything so Adam turned his attention back to locking the door of their apartment.
.
Seeing and greeting Harry before leaving and arriving in the hallway became a recurring occurrence that Adam found himself anticipating. The first few times, Adam was very nervous about whether Harry was going to stop to talk or not, but when a week passed and Harry only took the time to talk to him in the nights they spent on the rooftop, Adam finally calmed down.
It was an altogether different story with his father.
His father didn't really say anything about Harry but then one day, as Harry gave his customary greeting to Adam, his father was at the door.
"Adam," His father started. "Why don't you invite your friend in?"
Apprehension grew in Adam. He chanced a glance at Harry but his friend merely tilted his head to the side, his green, green eyes staring at Adam, a gesture that Adam grew to realize meant it was a question Adam was supposed to answer even if it was not directly addressed to him.
It seems Adam took too long to answer, or maybe Harry just saw something that Adam wasn't aware of, because the younger man's smile became less pronounced.
"It's okay, you don't have to."
As he watched Harry's back, something in Adam felt bad.
"Wait I—" Adam fumbled with his words. "Harry?" To his relief, Harry stopped and turned to look at him. "Would you-would you like to come in?"
The smile Harry wore could only be described as bright and… happy.
Adam found himself copying Harry's smile even if it felt strange on his face because Adam was happy too.
It didn't take long for Harry to be accompanying Adam in the afternoons.