Kristin Cavallari Had 'Nothing In Common' With Ex Justin Bobby

'The Hills' star admits to 'amazing chemistry' with co-star Brody Jenner, teases new romance.

Audrina Patridge has moved on from on-and-off love Justin Bobby, and now it seems that her pal and "Hills" co-star Kristin Cavallari is doing the same. Despite what appeared to be a new start for Justin and Kristin at the end of last season, season six won't see the couple taking their relationship to the next level.

"That's over. It's done. It didn't go very far," Cavallari said of JB. And the split, according to Kristin, was mutually agreed upon. "I don't think anyone's to blame for it. I think we're two completely different people. I mean at the end of the day we really have nothing in common."

"Hills" followers shouldn't worry that Kristin might be heartbroken. She's always had great chemistry with her ex-guy Brody Jenner. The newly single star could revisit that relationship, though Brody also seems to be getting close to a new lady this season.

"Micaela is new to L.A., actually," Cavallari said of Jenner's potential love interest. "But funny enough, she's sorority sisters with Lo. ... Brody and I have been hanging out a little bit. We have amazing chemistry, so we have a great time together. But I don't know. I don't know if we could ever really get back together, but Micaela's a girl that Brody started dating."

So, who else is on Kristin's radar? Fans will have to tune in to find out. "I do ... date this season, actually," she dished. "There are some good dates and there are some bad dates, which are great for TV!"

Should Kristin rekindle things with Brody or date other guys? Tell us in the comments!

"The Hills: Final Season" airs at 10 p.m. ET/PT every Tuesday followed by "The City" at 10:30 p.m. ET/PT on MTV.