From 2005 until somewhere in late 2020 or early 2021, it appeared as though Ben and Jennifer had little to no contact with one another. During that time, the stars led their own very separate and successful lives, both personally and publicly. Jennifer and Marc had two children, Maximilian and Emme, prior to their split in 2014. Ben and Jennifer Garner, who were wed in 2005, had three children: Seraphina, Violet, and Samuel. Their relationship ended in 2018.
Most recently, J.Lo had been linked to Alex Rodriguez, with plans to marry constantly delayed due to the outbreak of COVID-19, as well as personal reasons. After some time, the couple finally decided to call it quits, saying they were better off as friends than lovers.
Not even a month later, Jennifer was spotted driving around with Ben and soon after, they were reportedly jetting off to Montana, per People. While this is a clear indicator that something is brewing romantically yet again between the two stars, only time will tell how their relationship develops under these new circumstances.
Source : https://www.distractify.com/p/ben-affleck-jennifer-lopez-relationship-timeline