Cowboys, Babies and Shotgun Vows: Harlequin comics

Ryder wakes up to find the girl he spent the previous night with is gone. He had helped her get to a motel after finding her drunk in a bar. She seduced him, and they spent a night of passion together...even though she was a virgin! Not only that, she is the daughter of a wealthy oil tycoon. It looked like it was never going to work, but when he thinks of her his heart skips a beat. He has to find her, and ask her why she dumped this confident playboy after just one night!