According to reports from the US, the couple has amicably parted ways recently after around six months together.
A source told People magazine: "They're just in two different places in their lives – he's in college and she's focused on her music and career."
'We Can't Stop' singer Miley began dating Arnold Schwarzenegger's son in November last year, but their romance was rumoured to have hit a rocky patch earlier this year.
Patrick was pictured with another female in Mexico while on spring break with college friends, leading to accusations that he'd cheated on Miley.
But he strongly denied this.
After the accusations surfaced, he tweeted: "Girls have guy friends and guys have friends that are girls. Would NEVER do anything against my GF. Omg. It's one of my best friend's girlfriends."
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!