Miley Cyrus and Kaitlynn Carter had a whirlwind romance after they were spotted canoodling while on vacation in Italy on Aug. 10 but now that theyve split, friends are still trying to figure out what went wrong.

Miley Cyrus, 26, and Kaitlynn Carter, 31, split up after a month of intense dating and although it was a quick romance, friends are still surprised they decided to call it quits because of how well they fit together. “Miley and Kaitlynns relationship has always been genuine and real,” a source EXCLUSIVELY told HollywoodLife. “They seemed to be getting serious as well, so any break-up is really shocking to hear between these two and had to have been recent. Miley and Kaitlynn have always been great friends from the Malibu community and supportive of one another and since their break-ups happened at the same time, they leaned on each other differently than ever before, but Miley seems to be going through a lot right now figuring out her path and her way. Mileys family has been really thankful that she had Kaitlynn by her side.”

Miley has definitely seemed to lean on Kaitlynn after splitting from husband Liam Hemsworth, 29, which was announced the same day she was first seen flaunting PDA with Brody Jenners ex. The couple was spotted on numerous outings together, including the MTV Video Music Awards, a lunch in Los Angeles, and they were even seen moving in together in early Sept.

So what could have gone wrong? Well, Miley and Kaitlynn