Some people are just unlucky in love. Miley Cyrus has reportedly split from her girlfriend, Kaitlynn Carter, just weeks after going public.

"Miley and Kaitlyn broke up," a source told PEOPLE. "They're still friends."

"They've been friends forever and were there for each other when they were both getting separated," the insider adds, "but they're just not in a romantic relationship anymore."

The pair went public after they were snapped by paparazzi locking lips on a boat. Miley had reportedly split from her husband Liam Hemsworth before the romp was caught on camera - and Kaitlynn also left her "husband" Brody Jenner - the son of Caitlyn Jenner. Kaitlynn and Brody were never legally married.

Kaitlynn and Brody appeared on the MTV reboot, The Hills: New Beginnings, where Kaitlynn was desperate to have a baby, but Brody was not.

Miley and Hemsworth had reportedly signed a prenuptial agreement ahead of their marriage, so a smooth divorce is expected, PEOPLE confirmed.