Dearest by Jacquie Walters

Flora navigates the newborn stage alone, but as the sleepless nights pass in the loneliness of their half-empty home, the edges of her reality begin to blur. Just as Flora becomes convinced she is losing her mind, a surprising guest shows up: Flora's own mother, to whom she hasn't spoken in years. Can they mend their fraught relationship? Or is there more Flora's mother isn't telling her about the events that led to their estrangement?