The Duke’s Wicked Wife by Elizabeth Bright

Sebastian Sinclair, the Duke of Wessex, is not in love with Eliza Benton—nor anyone else, for that matter. But he must marry and produce an heir, and love is not required for either. His future duchess must be of high birth and good nature, a lady unlikely to snipe at him over breakfast. In short, the complete opposite of Eliza. So who better to help him find a bride?
Eliza Benton is not in love with the Duke of Wessex. He’s infuriating, arrogant, and an ass of the first order. Not that she has any intention of marrying anyone now that her secret dream is on the cusp of becoming reality. A husband would ruin all her careful plans. But she’s all for finding her nemesis the perfect bride, anything to get him from underfoot so she can focus on her writing.
Thank goodness Sebastian and Eliza aren’t in love. That would be disastrous.