The Maddest Obsession (Made, #2) by Danielle Lori

The Maddest Obsession is a dark romance novel by Danielle Lori about the obsessive, tumultuous relationship between Gianna Russo and Christian Allister, a woman from the mafia world and a cold federal agent. Spanning seven years, their connection evolves from initial hatred and bickering into a consuming affair, exploring themes of love, control, trauma, and the blurred lines between obsession and love