Score, Lucy. Knockemout series.

"Lucian Rollins is a lean, mean vengeance-seeking mogul. On a quest to erase his abusive father's mark on the family name, he spends every waking minute pulling strings and building his empire. The more money and power he gains, the safer he feels. Except when it comes to one feisty small-town librarian... Bonded by an old, dark secret from the past and their current mutual disdain, Sloane Walton trusts Lucian about as far as she can throw his designer-suited body. When bickering accidentally turns to foreplay, the flames are fanned, and it's impossible to put them out again. But with Sloane more than ready to start a family and Lucian refusing to even consider the idea of marriage and kids, these enemies-to-lovers are stuck at an impasse. Until Lucian learns the hard way that leaving Sloane is impossible--the very least he can do is to keep her safe"--