Last night on "Dancing with the Stars," Audrina Patridge broke down after saying her time on the show was putting a strain on her relationship with her boyfriend -- so, who's she dating?

After the former star of "The Hills" broke up with Ryan Cabrera, she got back together with one of her exes -- Australian BMX biker Corey Bohan.

The couple, who dated from 2008-2009, have been spotted together in Bora Bora and Vegas since August -- and after Audrina's performance last night on the show, he Tweeted "So proud of you babe!!!! Everyone get on the voting lines and help @AudrinaPatridge keep dancing!!"

FYI: Audrina scored second last night, finishing with a 23/30 ... just one point shy of tying with winners  Jennifer Grey and Derek Hough.

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