He really likes you. But he knows that it can't last forever and he has to go. As he is thinking about this you suddenly pop up into his mind. He then collects the perfect maple leaf and hands it to you. As a remembrance of him. He wants you to take care of it. He obviously has a sad look in his eyes but still manages to smile. He wants to spend more time with you as the thought of you guys apart shatters his heart.