What happens in Cabo, stays in Cabo, unless you're part of the Hollywood circle. Unfortunately, Patrick Schwarzenegger forgot that when he partied in Mexico. After merely five months of dating, it seems that he's split up with his girlfriend, Miley Cyrus, and this time, according to Us Weekly, it's for good.

A source for Us Weekly said, "The Mexico scandal did serious damage."

As the news outlet noted, 21-year-old Schwarzenegger was caught getting too close to a bikini-clad woman in Cabo San Lucas, Mexico, during his spring break last month. Although he insisted that he wasn't cheating on his girlfriend, the source said that in the end, Miley concluded that Patrick was not the person "she thought he was."

The insider explained, "At first, she was into him because she thought he was a nice guy," but after her relationship with former fiance Liam Hemsworth, another Us Weekly source said that "She doesn't put up with crap from guys."

It seems Miley is not bothered with her newly single status. Soon after her breakup was announced, she was seen out and about in a sexy black sports bra under a varsity jacket, and seemingly cheerful enough as she headed to her workout in Studio City. She flaunted some abs and wickedly toned tummy in workout gear, all ready to burn some calories, E! News noted.

That's not all -- if rumors are to be believed, she also already has a new arm candy! According to Hollywood Life, she was seen getting flirty with another man for a rebound romance, as the "Wrecking Ball" singer was seen cruising around Los Angeles with Shaun White. The outlet's source shared that "Miley kept putting her head on Shaun's arm while he was driving, I thought they were a couple!"

Miley and Patrick only called it quits earlier this week, but even before news about their breakup surfaced, they were already slowly giving each other time off as Patrick enjoyed a weekend at the Coachella Festival without Miley. She, on the other hand, went on a getaway trip to northern California with one of her friends, E! News added.

But while Miley is having fun after the breakup, apparently, Patrick is in a much more dismal state. A source told E! News that after the controversy in Cabo, "He doesn't even know what to do with himself and just wants to hide from the world. He's had some of his friends around for support, but he's very down and upset. He hasn't cracked a smile or been able to think about anything except Miley. He's so embarrassed and knows he screwed up."

What do you think? Should they get back together, or should they stay away from each other instead?