I wouldn't know, and neither would anyone else outside of her closest circle whatever the celebrity mags and media says. You can be swanning it on the arm of a famous hunk and still be desperately miserable, perhaps rejected by someone else you much prefer.
The problem for celebrities is that they feel awkward about pairing with a nobody, and it's difficult to get the undying devotion from one man when he's a highly desired celebrity himself. There's always lots of competition. How stressful!