Ella started her story with how she and Thalia initially met.
Since it was known that Thalia came from the mortal's world first, doubts about how she can rule the heaven can not be avoided.
At first, it was difficult for Thalia to socialize with other gods. That's when Ella came into the picture.
She was originally, the God of Luck. Being at a young age that was not different than Thalia, she thought that it would be better to be friends with her.
At the start, both she and Thalia were close with each other but they have kept their friendship hidden even with people around Thalia.
The main reason for that was because Ella wanted to keep a low profile.
She did not want to be approached by people who wanted to get close with Thalia hoping that they'll get a benefit.