It was his fault you left, Rintaro knew that.

What happened between you two was nothing more than a casual thing. Hushed whispers exchanged between hot breaths, touches that didn't lingered for them to be mistaken as anything other than an escape, rushed intimacy in places far too inappropriate and the laid back situation you both wove between you.

But he tangled himself with you with the same strings he wanted not to attach himself with.

He got scared, naturally, because the relationship you both built wasn't of that romantic nature; it was for fun and the commitment wasn't a part of the contract. And the distress led him to fuck up. He screwed it all up.

Words were thrown around, laced with venom and a heat behind them that was meant to be defensive but ended up being hurtful. They sunk its painful claws in whatever he had built with you and ripped it apart without hesitation. At first, he was relieved; he didn't had to deal with the unwanted feelings that had ever so comfortably settled in his chest and mind. But it ended up being a double edged sword, because as soon as the relief started to fade, it opened the door for the realization to appear and it came holding hands with regret.

He realized too late what he had lost, and what he wanted back, desperately so. He yearned for the same feeling he drove away with his careless words and actions.

And maybe it was a bit low, but he wasn't above begging if it meant having you back. Did you thought he wouldn't do it? He could, and would, if needed to. To show you how real his feelings were, even if they were once denied and hidden in desperation.