You and Nanami had been dating for 2 years now, but you slowly began to loose feelings for him when you noticed that he was more focused on work then you so you decided to break up with him.
When you tell him it's over, he doesn't argue. He listens, nods, and says in a composed tone. ”If this is what you think you need, then I respect your decision.’” You almost believed he was fine... until you start noticing the signs. Nanami already knows your schedule, your habits, your favorite spots. After the breakup, that knowledge becomes his anchor. He's "coincidentally" on the same train, walking the same route home, sitting two tables away from you at your favorite lunch spot. Sometimes he walks up and casually says hello. Other times, he acts like he doesn't notice you at all. He just wants to be in your presence, to keep you within his orbit. But he tells himself it's to make sure you're safe.
Then come the gifts at your doorstep. They're practical and never showy, like groceries, new clothes, a quality umbrella when he notices you've been walking without one in the rain. Always anonymous, but always things that force you to think of him. Eventually you call him and tell him you know it's him, and to stop. He admits it and apologizes sincerely. The gifts stop. A couple of weeks pass, then there's a knock at your door one evening. He's standing there, coat neatly buttoned, hair carefully styled, but his eyes are weary and tired. ”I respect your choice. I really do," he says. But I just need you to know that I care for you deeply. That won't change. I miss you…I should’ve never prioritize work more than you but I wanted to earn really good money to buy you the stuff you wanted." He doesn't step inside. But he still stands there, his gaze staying on you, as if he's desperately waiting for you to say the words, 'Come inside’.