Superstar Jennifer Lopez has opened up about her painful divorce from ex-husband Marc Anthony. A new documentary, “Jennifer Lopez: Dance Again,” goes behind the scenes of the singer/actress’ world tour in 2012. J-L0 talks about how she struggled to come to terms with the ordeal that the split caused her. In the show, which premiered on Wednesday, Lopez said, “I remember being on the set and being in my dressing room and not feeling like I could get up in the morning and there’s just no pain like that. The couple announced in 2011 that they were separating after seven years together, and Anthony filed for divorce in 2012. The divorce was final last June.