Jennifer Lopez says she and Ben Affleck really wanted to make their relationship work when they called off their wedding in 2003 – but they weren’t “mature enough” to figure it out. The 54-year-old actress and singer was initially engaged to Hollywood star Ben, 51, in the early 2000s before they broke things off and reconciled more than two decades later and tied the knot in 2022. The ‘Marry Me’ star – who has twins Emme and Max, 15, with former spouse Marc Anthony – has opened up about calling off her wedding to the ‘Argo’ star and explained that they both were not “emotionally” ready to make…