Quantum theory of nearly-kisses

Given:
Evy, the genius of mathematics and the owner of an alarming disorder,
Caleb, the future developer and the best friend of Evie,
Leo, a beginner and inventor of "lovely" solutions,
Cute, unknown meaning.

Question.
What will happen if Evie finds out in one equation, from childhood a lover (unrequited?) For the best friend of Caleb and Leo, whose grades fell due to how Evo bites his lip? And if there is a third one - a mysterious friend by correspondence? Life tasks with an asterisk, the difficulty of communicating with a hyper -beeping mother, sessions with a psychologist, the first relationship and a difficult choice between friendship and love - why does everything happen just like that and how to figure it out?