Kristen Stewart says she's 'miserable' - even with Robert Pattinson back in the picture?

Sure, Kristen Stewart has supposedly rekindled her relationship with boyfriend Robert Pattinson after cheating on him with Rupert Sanders in July, but according to an interview in Marie Claire U.K.'s new issue, perhaps even a romance with her co-star isn't enough to make the "Twilight" actress happy.

"I'm a miserable c***," she says. "I'm not sure if I'm most happy when I'm comfortable and content or when I'm pushing myself to the limits. There are such different versions of happy. And I really appreciate both."

Considering the summer she's had since photos were published of her and her married "Snow White and the Huntsman" director kissing, we can cut her some slack for calling herself miserable -- but the c-word? Come on, KStew! Don't be so hard on yourself.

Do you think Stewart's description of herself is spot on?