I think it was a one-shot with an ambiguous ending, but there are a lot of BL stories that start like this, so I'll write you an ending...
They both go on to university without having further contact with one another, though they both think of one another from time to time.
Then one day in his 3rd year of university Daiki is hanging out with some friends and happens so catch a glimpse of Noya passing by.
He leaves his friends to follow after Noya, and as he's about to catch up to his old friend, he realizes Noya isn't alone. The man next to Noya leans in to whisper something in Noya's ear. Noya laughs, and Daiki realizes that these two are more than friends.
Daiki stops dead in his tracks, shocked by the sudden wave of jealousy... The thought of Noya someday having a girlfriend never bothered Daiki, but to think that some other man would become closer to Noya than Daiki himself was unbearable.
Noya glances up and sees Daiki standing there. The sly grin melts from his face to be replaced with shock and pain.
Daiki anxiously fakes a smile, though his heart is suddenly in complete turmoil. As he greets Noya and his friend, Daiki isn't sure exactly how he feels. He had missed Noya of course, but he hasn't realized how much of a hike Noya's absence had left in his heart until that moment.
Afraid that Noya might disappear again, Daiki insists on trading contact information...
Several days later Daiki has convinced Noya to meet up with him, though he can tell Noya is reluctant to do so.
They go drinking and discuss old times. At first things are awkward... Then it feels like old times. After far too much alcohol, the pair ends up back at Daiki's apartment, where Daiki gives into a moment of weakness and kisses Noya.
After a very hot and heavy few minutes, Noya comes to his senses and pushes Daiki away, furious that Daiki would toy with his feelings. Refusing to listen to Daiki's explanation, Noya runs out of the apartment. He leaves in such a rush that he forgets his coat, which of course has his wallet in the pocket.
That night Daiki finds himself heartbroken, clutching Noya's cost to his chest. When he examines his true feelings, he realizes that it doesn't matter that Noya is a guy. They are meant to be together.
Daiki goes to Noya's house the next day to return the coat and wallet and confesses his love to Noya.
Of course at first Noya is reluctant to believe Daiki. Noya is terrified of being hurt again, but Daiki persistently pursues Noya over the space of the next few weeks.
The man who was seen with Noya on that first day turns out not to be Noya's boyfriend... yet... but he wants to be. He threatens Daiki to stay away from Noya. Doesn't he know that Noya can't open himself up to loving anyone else because of Daiki's long ago rejection?
Rather than dissuading Daiki, this news merely fuels his determination to win Noya back.
Noya of course has never fallen out of love with Daiki, but he believes that Daiki's confessions of love are just confusion and loneliness. In an attempt to convince Daiki that what he feels isn't romantic love, Noya seduces Daiki.
Noya fully believes that Daiki won't be able to go through with it, and he'll leave Noya alone permanently. Nita is of course wrong. Daiki is fully prepared to make love with Noya and does so quite exuberantly.
Noya cries and Daiki tells Noya how much he loves him and how he has missed him.
After his disastrous plan fails, Noya agrees to be together with Daiki....
And they live happily ever after...
Is this better?
What happen after that in chapter 5 did they start dating or else...........oh please make them star dating ╥﹏╥ ╥﹏╥