The Lying Life of Adults by Elena Ferrante
Tiny Overview
1990's Naples is home to Giovanna, where she hears her Dad call her ugly - comparing her to a mystery family member that has been shunned out of the family. This intrigues her, so she hunts her down and finds her Aunt Vittoria, learning about her life and adopting her mantras to cope with new issues that have popped up in her life. She learns that her Father is a liar, the marriage is failing, and nobody is as the seem on the surface.