The 19-year-old actress said in an interview with Complex published Tuesday that she cut her trip with Disick short in May after the 34-year-old reality star's drinking and partying became "way too much" for her.
"Scott is really nice, sweet, charming," Thorne told the magazine. "I don't drink, and he really drinks a lot. And it just ended up ...I just wasn't down. I was like, 'I gotta leave.' We were [at Cannes] a day and a half before I was like I'm booking my flight and leaving."
"I love to go out and have fun, I love to [expletive] dance, but I just don't party hardcore like that and it was way too much for me," she explained. "I was like, 'Whoa, this is not the way I live my life, bruh.'"
Thorne and Disick were spotted getting close by a pool May 24 in Cannes. The actress appeared to call it quits the next day, with Disick moving on to ex-girlfriend Chloe Bartoli and other women.
"Yo this #cannes fancy life isn't for me," she tweeted May 25.
Thorne later sparked rumors of a reconciliation with ex-boyfriend Gregg Sulkin by sharing a cozy photo with the actor for his birthday. She said Tuesday in an interview with Entertainment Tonight that she's "single like a Pringle" but still in touch with Disick.
"We're chillin', we're friends, we're cool," the star said. "I literally just saw him, so it's literally all chill."
Thorne is known for playing Tancy Henrickson on the HBO series Big Love and CeCe Jones on the Disney Channel sitcom Shake It Up. She presently portrays Paige Townsen on the Freeform drama Famous in Love.