Marry in Scarlet by Anne Gracie

When a duke denied . . .
The proud and arrogant Duke of Everingham is determined to secure a marriage of convenience with heiress, Lady Georgiana Rutherford. He’s the biggest prize on the London marriage mart, pursued by young unmarried ladies and their match-making mamas, as well as married women with a wandering eye. He can have any woman he wants. Or so he thinks. . .

…Hunts an independent lady . . .
Lady Georgiana Rutherford–irreverent and unconventional–has no plans to marry. Having grown up poor, Lady George has no intention of giving up her fortune to become dependent on the dubious and unreliable goodwill of a man. Especially a man as insufferable as the Duke of Everingham, whose kisses stirs unwelcome and unsettling emotions . . .

…Sparks are sure to fly
The more she defies him, the more the duke wants her, until an argument at a ball spirals into a passionate embrace. Caught in a compromising position, the duke announces their betrothal. George is furious and when gossip claims she deliberately entrapped the duke–when she was the one who was trapped–she marches down the aisle in a scarlet wedding dress. But the unlikely bride and groom may have found love in the most improbable of places–a marriage of convenience.