Firefly Lane by Kristin Hannah

Tully (suffering parental neglect) and Kate (raised Catholic) share a turbulent thirty-year friendship. Despite betrayal, they reconcile for Kate's terminal cancer diagnosis, proving their bond unbreakable.

This book contains: alcohol and addiction, animal neglect, anxiety, body shaming, bullying, controversial gender and social commentary, death (cancer/miscarriage), deception, depression, drugs and addiction, explicit sexual activities/nudity, grief, parental
neglect/abandonment, profanity, rape, sexism, smoking, stealing, toxic relationships, victim shaming and violence.