Angelina Jolie says she has not dated since her divorce from Brad Pitt and is concentrating on her six children while promoting Couture.Jolie links her role as Maxine Walker, a filmmaker confronting breast cancer, to her preventive double mastectomy in 2013 and says her daughters urge her to reclaim life beyond motherhood.The divorce finalized last year after a lengthy legal fight; three children remove Mr. Pitt's surname, the twins distance themselves, and Pax maintains contact with Mr. Pitt's relatives.