18+ mature themes "Everybody has a past, but will it come back to haunt you?"

Don't you call her baby. We're not talking lately. Don't you call her what you used to call me... A story in which a girl who writes songs falls in love with the boy who sings them. "Color...What a deep and mysterious language, the language of dreams." - Paul Gauguin. DO NOT PRINT MY BOOKS! *TW: story contains mature topics such as mental abuse, PTSD, minor drug usage, and minor sexual content.*

Duplicity doo-plis-i-tee noun deceitfulness in speech or conduct, as by speaking or acting two different ways to different people concerning the same matter; the quality of having two elements or parts being twofold or double. Mary did not think life could get any worse. Then she met Harry Styles.