The singer says of ex-husband Russell Brand that she "was in love with him when I married him" in 2010. She adds that she hasn't heard from the comedian since Brand sent her a text on New Year's Eve 2011 saying he wanted a divorce, about 14 months later.
Perry says she blamed herself for their breakup until she "found out the real truth," which she "can't necessarily disclose."
She also opens up about her on-again-off-again relationship with John Mayer, saying she "was madly in love with him" and still is. She also says he has a "beautiful mind" and a "tortured soul."
The July issue of Vogue goes on sale June 25.
Copyright 2013 The Associated Press.