The source stressed that the two really haven’t given up their friendship. “They’ve been friends forever and were there for each other when they were both getting separated, but they’re just not in a romantic relationship anymore.”

Cyrus and Carter are both recently out of marriages: Cyrus and her husband Liam Hemsworth announced their separation last month, right as photos came out of Carter and Cyrus kissing on a vacation in Italy together. (Cyrus and Hemsworth had reportedly privately been on a break for months.) Carter and her husband Brody Jenner announced theirs at the beginning of August.

Cyrus denied cheating on Hemsworth during their marriage on Twitter, debunking any rumors there was an overlap between her and Carter’s romance and her and Hemsworth’s. She wrote:

The truth is, once Liam & I reconciled,I meant it, & I was committed. There are NO secrets to uncover here. I’ve learned from every experience in my life. I’m not perfect, I don’t want to be, it’s boring. I’ve grown up in front of you, but the bottom line is, I HAVE GROWN UP. I can admit to a lot of things but I refuse to admit that my marriage ended because of cheating. Liam and I have been together for a decade. I’ve said it before & it remains true, I love Liam and always will. BUT at this point I had to make a healthy decision for myself to leave a previous life behind. I am the healthiest and happiest I have been in a long time. You can say I am a twerking, pot smoking , foul mouthed hillbilly but I am not a liar. I am proud to say, I am simply in a different place from where i was when I was a younger.

Carter and Cyrus, in their month together, were reported to have moved into the same LA home. They had public dates in New York City and Los Angeles, where they were affectionate in front of photographers.