It's been nearly four years since Jennifer Aniston and Brad Pitt announced their split -- and Brad began his new life with Angelina Jolie. By all appearances, Jen has long since moved on.

But it turns out Jen hasn't forgiven Angelina for coming between her and Brad. Life & Style has learned exclusively that Jen discusses Angelina by name for the first time in an interview in the December issue of Vogue. "What Angelina did," Jen says, "was very uncool."

In the interview, conducted in New York and in Jen's new Beverly Hills home, the 39-year-old star discusses everything from upcoming movies to her relationship with her parents. But her comment about Angelina is the biggest surprise -- especially since Jen has privately outlawed any mention of "Brangelina." "It's a topic her friends know to avoid," an insider close to Jen tells Life & Style.

For more on Jen's interview -- including why she spoke out now and a look at her other revelations -- pick up the latest issue of Life & Style, on newsstands tomorrow!