She recalled her past with Stella.
They had gone to the same hospital for their internship, and they naturally grew close to each other because they were both new to the environment.
Stella was naturally distant, and thus there wasn't much interaction between them.
There was once, towards the end of the semester when Eli had caught a cold. She was nauseous for the entire day and she couldn't complete her thesis. She thought that she was screwed. However, she never expected that Stella would complete and submit her thesis for her.
She had always been a person who cherished acts of service. Ever since then, she got closer to Stella and both of them became close friends.
If it weren't because of what had happened to her mother, Stella would still be her best friend.
Unfortunately, there were no ifs, and her mother would not come back from the dead.