Just if people know that one sits alone, cause maybe she choose to be lonely. Maybe she choose to no one knows what she thinks. Maybe she just doesn't want anyone else to accompany. Maybe she feels nobody will understand her story.
That she just want to keep her smile when she looks everything he did. She just want to keep her words when she actually wanna say to him. She just want to keep herself to not make any different when she talk with him or others.
Maybe she just wanna keep everything. Cause she's too afraid if she have to stop to admire him. So that's why she's been the same everyday, talk to him just when she needs, not when she wants.