Making the rounds at New York's Fashion Week, Bosworth looks extremely thin, drawing concern from friends and onlookers. She tells PEOPLE she's been fighting what she thinks was an allergy attack that turned into "a little sickness."
After calling it quits with on-and-off again love Bloom, Bosworth cuddles up to her new boyfriend, model James Rousseau – whom she dates until 2009.
With two new flicks (including the No. 1-box-office-opener, 21), Bosworth appears on the cover of Marie Claire, where she talks about getting older. "I just turned 25, which was a weird one. I feel like I had this quarter-century crisis," the new face for Calvin Klein tells the magazine. "Whenever I said before that I was 21 or 22, everyone would say, 'Oh, see, you're so young.' And all of a sudden, you hit 25, and people say, 'Oh, right, oh, okay.' And you're like, 'Uh, what do you mean?'"
After being romantically linked since October, Bosworth and True Blood star Alexander Skarsgard seem very much a pair at the Coachella Valley Music and Arts Festival, where the actress got the best seat in the house – atop her "very good friend"'s shoulders. Their romance fizzles in 2011.
Are wedding bells in her future? In an online travel blog for Vogue, Bosworth, 29, reveals she is engaged to director-boyfriend Michael Polish. "On our first day in Seoul, my fiancé, Michael Polish, and I venture out to discover Changdeokgung Palace," she writes. A month later, Bosworth confirms she is set to wed over Twitter.
Bosworth and Polish exchange self-penned vows during an outdoor ceremony at The Ranch at Rock Creek in Philipsburg, Mont., for which the actress dons two Oscar de la Renta dresses. "I never even dated my husband-to-be," she tells InStyle UK months earlier. "He said to me after just a few weeks before we were even together, 'I'm going to marry you.' He just knew."
BIOGRAPHY (top to bottom): KRISTIN CALLAHAN/ACE PICTURES; GERALDINA AMAYA/FRANK ROSS; TC/London Ent/Splash News Online; INF; Norman Scott/Startraks; Courtesy Kate Bosworth