MiwArtFlow
Got you-one smooth paragraph, no line breaks, still emotional and fitting your story:
You knew Osamu Dazai long before he became someone people whispered about, back when you stood beside him in the Port Mafia along with Chuuya Nakahara and everything felt chaotic but unbreakable, or at least that's what you believed until the day he left without a single word, no explanation, no goodbye, nothing but silence that slowly turned into resentment, and now years later he's back, smiling like nothing ever happened, joking like he didn't disappear from your life, treating you like you're just another person when you know you're not, because no matter how many times he flirts with others or hides behind careless words, there's something in the way he looks at you that never changed, something that says you were never just anyone to him, even if he refuses to admit it, even if you try to hate him for leaving, because in the end, no matter how much time has passed or how much things have changed, you were always the one person he could never forget.