Demi Lovato knows exactly what she wants in a man.
"I don't have many deal breakers. I've done so much in my life, it doesn't feel right to judge other people," the 19-year-old tells the July issue of Cosmopolitan. "Oh, I know one quality I won't tolerate: I would never be with a guy who is controlling."
Though she's currently single, Lovato -- whose exes include Wilmer Valderrama and Joe Jonas -- envisions herself walking down the aisle and starting a family by the time she turns 29. "I want to be married with kids in 10 years," she tells the magazine.
The teen superstar -- who will join Britney Spears, 30, on The X Factor this fall -- also opens up to Cosmopolitan about being diagnosed with bipolar disorder while seeking treatment at Timberline Knolls in late 2010.
"I felt relieved when I found out. Like I'm not completely crazy; there's a medical reason for all of it," she explains. "It's a daily thing; you don't get time off from it. And if I feel myself slipping back into old patterns, I have to ask others for help, which is hard for me to learn, because I really like doing everything on my own."
In addition to filming The X Factor, Lovato will kick off her summer tour June 12 in Del Mar, California.