Jane's childhood is over, and now it's time for the big reveal. It's the ruby button that she gave to him as a gift from her mother. It turns out that Jane gave the button to him when he was 3 years old, and that's when he first met her. Now that he's grown up, he can't believe that his mother gave him such a thing. He's even more shocked when he realizes that he also belongs to her, alone, without her knowing it.