SOLVED. Mills & Boon/Harlequin about a princess and a sheikh

I’m looking for a book I read a few years ago. The story concerns a princess of a small European country, who is to have an arranged marriage with a desert sheikh. The princess has had a couple of “accidents” in cars, skiing etc, and has appeared drunk, so she has a poor reputation as a party girl. In reality, her uncle is trying to kill her to take the throne. The sheikh is not happy to marry such a woman, so he goes to collect her to bring her to the desert, but pretends to be his own bodyguard. On the journey, which she tries to resist, they are attacked by mercenaries. Any help would be appreciated. Thanks.