instyleaniston4.jpgMichelangelo Di Battista

JENNIFER-ANISTON-INSTYLE-MARCH-2012-230.jpgJennifer Aniston graces the cover of InStyle’s March issue, and the 43-year-old actress answers readers' questions about her style, relationships and aging in Hollywood.

Jen says she's confident with her looks, but every once in a while she gets a reality check when she sees someone younger than her. Jen tells the mag, “You know what makes me feel old? When I see girls who are 20-something, or the new crop of actresses, and think, Aren’t we kind of the same age? I don’t feel my age. I feel young every day.”

Of course, being in love certainly helps! Jen has been dating actor/writer Justin Theroux since last spring, and she reveals that failed past relationships have helped her find the right partner. "Having experienced everything you don’t want in a partner over time, it starts to narrow down to what you actually do want," she says. "As I get older I realize what qualities are important in love and what suits me. And what I won’t settle for." Hmm, wonder what Brad Pitt and John Mayer think about that comment?

When it comes to her current beau, it seems like she's adopted his hipster-inspired outfits, but she insists that it's all her own. “First of all, he has great style—it’s very specific, and it has been his style forever," she says. "Has it influenced mine? No, but I know people say it has. ‘Oh, look, you’re dressing alike.’ And I think, No I’m not. I’ve had this jacket for three years!” Uh huh!