At a Los Angeles screening of her film The Roommate, she shared her horror stories of bunking with pals.
Meester, who plays Blair Waldorf in Gossip Girl, told Etonline.com: 'I'm just not as social at home. I like to go and stay in my room and do my own thing.'
The 24-year-old added: 'I used to have roommates and it'd always be like I come home and there's a party going on and all my ice cream would be gone. It's kind of better to live alone nowadays.'
The Roommate hits cinemas in the US on February 4.