Standalone novel.

"Twenty-seven-year-old screenwriter Elle has the chance of a lifetime: to write a big-budget movie set in New York City. The only problem? She's had writer's block for months, and her screenplay is dueat the end of the summer. In a desperate attempt at inspiration, Elle ends up back in the city she swore she would never return to, in an apartment she could never afford. ... It's the perfect place to write her screenplay--until she realizes her new neighbor is tech 'Billionaire Bachelor' Parker Warren, her stairwell hookup from two years ago. It's been a lovers-to-enemies situation ever since. When seeing him again turns into a full night of hate-fueled writing, Elle realizes her enemy/ twisted muse might just be the key to finishing her screenplay--if she can stand being around her polar opposite"--