It Ends With Us is, I suppose, marketed as romance, but I'd call it more women's fiction. I bought my copy new.
Review:
Domestic abuse is a huge part of this story. Don't be fooled by the romance novel trappings and marketing.
This is the story of Lily, a young woman who grew up wondering why her mother stayed with her abusive father. Now her father is dead, and Lily has moved to Boston and started up her own business, a flower shop. Her father's death and other events prompt her to think about her past, so she gradually reads her way through her teenage diary entries (which were always structured like letters to her favorite celebrity, Ellen DeGeneres). Her diary reminds her of her first love, Atlas, a young man who ran away from his own abusive family and lived for a time in the abandoned house next door to Lily's home.
As Lily reminisces about Atlas, she meets Ryle, an ambitious surgeon who tells her right from the start that he isn't interested in relationships or romance. Still, they're attracted to each other, and Lily gradually falls in love. As things with Ryle take a turn and he becomes abusive, Lily has to grapple with complicated emotions and memories of her past. She becomes even more torn when she runs into Atlas for the first time in years.

