Eloise's dealings in romance is the most obvious theme of the story, on a surface or new-reader level, her three relationships are what move the story along. But, I think there's more to telling her story than that. She's gone through a lot of grief that was, in a way, delayed until the events of the story.
So much has happened within the span of about two years. Elle was privliged enough to have examples in two queens (Vivi and Hana) who taught with dignity, responsibility, and a good sense of leadership. However, their emotional baggage was so bottled and passed along that, in the time they had with her, it couldn't be effective. What she witnessed, really, was generational anger and grief at the cost of ones self, in Hana, Vivi, and Lorraine. She had learned that this was the Rodchester way of rule.
In every act, though, those lessons came undone in a way that couldn't for any of her foremothers. In the first act she watched, as Viviane fell into her own past and as Arthur broke up with her. During the second, she took a more active role. Eloise trained, started working, and was apart of a situationship without attachment. She wasn't ready for what happened to her and Vivi, and just like her examples, Elle picked up her shit and carried on.
In the third act, I think she did the most growing. She became a mother with righteous anger for the wrongs she percieved to have been done to her child. For a while, she was able to forgive and grow from Raheem and Violas debatable wrongdoings. As Queen, she was able to perform her duties with little change from the Status Quo, of course in the wave of nationalism that comes after horrible political violence aided in that, but it still wasn't easy. She had, like, four months of preperation while her simblr world co-workers are prepared from birth.
I wish I would have focused more on the immediate aftermath. Though, the outcome would have been the same. When Eloise was at her lowest moment of private, even really from the audience, grief she trusted a man. Which isn't a mistake in and of itself, but by the time she learned his intentions it became one.
When Elle was faced with this betrayal she turned inward, as she was taught. But of course it didn't work, this sort of self-sacrafice was eating her alive as it did to Vivi before her. Nothing Eloise was taught had worked for her and it may have taken a push from a very much involved outsider to realize that.
Despite the story changing vastly from what I originally planned, her arc stayed the same. Eloise learned that what she and her foremothers were taught had irreparably harmed them and that if she wanted to grow, or forge a better path for herself and her future, she would need to make active and drastic change.
In the end, Elle ensured Philippe's distressed loyalty to her and voiced her anger to the detriment of her close personal love and friendship, which she'd formerly held closest to herself. She's learning to value new, less personal, things between stories. For now, I can say that will manifest first in the reorganization of her council; she's no longer thinking as a successor, but as The Queen.