How is aunty jean presented in Martyn Pig?

In "Martyn Pig" by Kevin Brooks, Aunty Jean is presented as a complex character who embodies both care and neglect. While she is responsible for Martyn's upbringing following the death of his parents, her emotional distance and struggles with her own issues create a strained relationship with him. Aunty Jean's character highlights themes of isolation and the challenges of familial bonds, ultimately contributing to the novel's exploration of loss and identity.