Audrina Patridge and Ryan Cabrera Split

The Hills star and her rocker beau call it quits over "his partying ways"

Photo: Denise Truscello/WireImage; Nick Sadler/Startraks

Together since January, Audrina Patridge and Ryan Cabrera have had their ups, downs and oh-so-romantic nights that have of course been chronicled on The Hills.

But it’s over now. “She ended things about a week ago,” says a source. “There were issues in their relationship. But a lot comes from his partying ways.”

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Tuesday night Cabrera hit Trousdale lounge in L.A. with some pals and was seen with an Audrina lookalike brunette. “He was grabbing her hands, whispering to her, smiling and they were laughing together,” says an onlooker.

So it this really the end or could this reality romance resurrect someday? Says another source: “He still wants to work things out.”