Ross first met dancer Morgan Larson while filming Disney's Teen Beach Movie in 2012. It's never been confirmed that the two dated, but during an April 2019 interview with Cosmopolitan, Ross revealed that he'd been involved in a love triangle on the set of the movie, though he didn't say with whom.
"I was 16 at the time of the first movie, but it was basically a bunch of high school students or college students," he said. "And they just put us on an island in the Caribbean for two months." A flirty Instagram Ross posted in July 2013 with Morgan (who was also in Teen Beach 2) led fans to believe something was going on between him and the backup dancer and that she may have been part of that supposed love triangle.