Kate Bosworth is currently fronting an ad campaign for Calvin Klein Jeans and will be on the cover of the new issue of Vogue as part of a press push for her new film 21, co-starring the quiverating sex machine Jim Burgess.

In the article, Kate addresses her break up with Three Whiskers Orlando Bloom and her shocking weight loss afterwards:

Life and Love with Three Whiskers:
Orlando and I met when we were kids. Blue Crush hadn"t come out. Lord of the Rings hadn"t come out. ... He was the first big heartbreak. ... First love: You feel like it"s the be-all and end-all. ... To put as little pressure on the relationship you"re in is very important. I regret that it was too intense for both of us.

Friendship with Three Whiskers:
The fact that I"m very close with my past relationships is something I pride myself on. My mom is still close to her first husband. It"s nice to be able to enjoy someone in a different form.

Skinny post Three Whiskers:
Whenever anything happens that"s very painful or stressful, we all lose weight — my mother, my aunt, my grandmother. ... I honestly thought something was wrong with me. ... I was concerned for my health and my fans, the public. I would have said, don"t look at this as the standard of some kind of beauty and health. [It was] a very dark time in my life.

Well…that’s one version of the story, isn’t it? The smutty version would be that she allegedly had a voracious appetite for blow. But Kate is so pretty and the heartbreak diet is so much easier to believe and no one in Hollywood does cocaine anymore, right?