Miley Hasn't Actually Been Single for Months She's been dating Theo Wenner since the summer: source By Evann Gastaldo, Newser Staff Posted Oct 19, 2013 4:28 PM CDT 15 comments Comments Miley Cyrus performs on NBC's "Today" show on Monday, Oct. 7, 2013 in New York. (Photo by Charles Sykes/Invision/AP) (Newser) – If, for some reason, you've been feeling bad for Miley Cyrus ever since she and Liam Hemsworth broke up ... well, you can stop now. Turns out she's been dating Theo Wenner, son of Rolling Stone owner Jann Wenner, since the summer, a source tells the Huffington Post. They met like so many of us do: while Miley was posing nude for the magazine and Theo was photographing her. For the record, the last time Miley was seen with her ex-fiance, Hemsworth, was Aug. 9. Wenner, 26, previously dated Liv Tyler.