Looking for a story.

Real life, high school. Protagonist is kid who is malnourished and abused by his drug user low life parents. They died, he is suddenly homeless, takes refuge in a bus that turns out to be a school bus, connects with football player on bus, and ends up moving in with him as girlfriend. Goes to same school. They help heal each other and the guys family, a type a lawyer and a stepmother. An identifying detail is the protagonist has nose bleeds a lot, turns out to be because of glass in her sinuses from when she was small, and is dad gave het a Xmas ball to eat. I really thought it was Bailey Summers, but don’t see it.