Kalea stupidly still thinks Aluna is a friend.
She wanted to make sure she came back with her own eyes Aluna really betrayed her. Even though in her small heart, she kept denying it.
It took some time for Kalea to really believe that Aluna was the culprit. For a week, Kalea watched Aluna's movements. The girl with the burgundy hair wasn't always with her now, because Violet and Aluna's friends forbade her not to be friends with Kalea anymore. And at that time, Kalea had also said that it was better for them to keep their distance for a while.
Aluna really did that.
Kalea was no longer treated badly by people directly, but she was still shunned by them. Kalea doesn't have any friends at all, and her condition is now really similar to Zeline. Kalea looked at the table where Aluna and her friends which were filled with laughter together.
It's like Aluna forgot about her.