Brody Jenner is living the single life again ... we've learned he and Kaitlynn Carter are calling it quits a year after they got married -- or so we thought.
Sources close to the former couple tell TMZ ... Brody and Kaitlynn are done, and she's already moved out of the house they shared together.
We're told Kaitlynn wanted 2 things from Brody -- a baby and a legal marriage -- but Brody ultimately decided he didn't want to do either, so they broke up. She wanted a legal marriage because turns out they never made it official after holding a ceremony last summer in Indonesia.
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We've confirmed Kaitlynn and Brody never followed up to get a marriage license here in the States ... meaning they never had a legal union.
Seems Brody is already fully embracing life as a bachelor, recently hanging with his boys for a night out on the town. You'll notice ... the wedding ring he slipped on at his "wedding" is no longer on his finger.