"she was struggling with a lot of truma and you were by her side all the time. She didn't understand when she fell in love with you, but every time she gets close to you, she acts the opposite of her feelings. Time passes for her and she becomes a real Tsundere, The kind who can't show you any of her feelings at all. She asked you to date her on Christmas night because she wanted to tell you something, but you saw She was waiting for you by the mall with her usual cold and calm appearance."