NEW YORK (AP) —  says it was more important for her to be happy than to worry about her public image. That’s why she’s back with Chris Brown.

Rihanna tells Rolling Stone, “Even if it’s a mistake, it’s MY mistake.” She admits it’s “not the cutest puzzle in the world,” but their relationship is different now because they don’t argue like they once did.

Rihanna says Brown doesn’t have the luxury of messing up again, and if he does, she will walk. Brown pleaded guilty to assaulting Rihanna just before the 2009 Grammys.