A World No Longer Heliocentric

Bella is the girl who lost everything to cancer, and her world suddenly revolves around her sickness. She lost her friends, her mother, her confidence. Her life became a series of doctor visits, stories in her head, and hours of making up for the work she misses in school. She never expects anything out of herself or life because she doesn't want to get her hopes up. Everything changes when she gets partnered up for a physics project with Liam.
Liam is the opposite of Bella, always looking at the future and keeping his hopes high. But his bipolar mother keeps him back, always derailing his life. Taking care of his mom without his dad, he always buried everything he felt. But when he gets partnered with his childhood crush for a physics project, Bella, his perspective with his mother and himself changes.
They challenge each other, impacting their own mindsets and decisions, feelings for each other kindling. When Bella learns the truth of her mother leaving and when she gets to the lowest point in her life, his faith in her strength leads her to believe there's a world that doesn't revolve around her. Bella forces Liam to discover his identity without his mother's life in his hands, uncovering a vulnerable side of him.
And to think that their lives together started with a physics project.