J.R. Martinez, girlfriend break upJ.R. Martinez, the wounded Iraq War veteran who won season 13 of "Dancing With the Stars," has broken up with longtime girlfriend Diana Gonzalez-Jones, 18 months after the birth of their daughter Lauryn Anabelle. "Diana and I have ended our relationship," Martinez, 30, told People magazine yesterday. "However, we are committed to working together to raise our daughter in a healthy and happy environment." Martinez and Gonzalez-Jones had been together for about four years.