Regretting You by Colleen Hoover is a drama about a strained mother-daughter relationship, Morgan and Clara, that intensifies after a car accident kills Chris, Morgan's husband and Clara's father. The novel alternates between their perspectives as they cope with his death and uncover family secrets, including a long-term affair between Chris and Morgan's sister, Jenny. Morgan finds comfort in Chris's best friend, Jonah, and Clara turns to a forbidden boy, while both women navigate grief, guilt, and self-discovery to ultimately heal and reconnect with each other.