Jennifer Lopez is entering her single era! After the pop star’s fairytale romance with her estranged husband, Ben Affleck, went up in flames, Lopez, 55, hasn’t shied away from looking her best on social media. The “On the Floor” singer finally ripped the band-aid off and filed for divorce from the Argo actor, 52, whom she married in 2022, on August 20. Lopez listed their date of separation as April 26, 2024 after the two spent their summer far away from each other. “It’s been incredibly difficult for her that Ben chose to pull away from their marriage and move on with his life, leaving her beh…