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Miley Cyrus claims she doesn’t have a boyfriend.

But try telling that to Laura Griffin.

The 19-year old Australian had to find out from her pals that boyfriend Liam Hemsworth had made out with Cyrus away from the cameras of the film they were shooting together, The Last Song.

Soon afterwards, he ended the relationship with Griffin. Coincidence? She clearly thinks not.

“He was my boyfriend and my best friend,” Laura told an Australian publication this week. “There is no other reason [other than Miley Cyrus] why we would have broken up.”

Over the last few days, Griffin has done something to which Cyrus can relate: post messages online. On her Facebook account, Laura’s moods have ranged from “total utter regret” to “depression of some sort.”

She couldn’t even muster up the enery to add a sad face at the end. :(

We hope this fling was worth it, Miley!