Ben Affleck and Jennifer Lopez are trying to keep their divorce civil … attending the same event with their fam — including Ben’s ex Jennifer Garner!

The trio stepped out Friday night in Brentwood … hitting an event in the West Los Angeles area — and, though we don’t know if they actually had a convo — we do know Ben and J Lo arrived just minutes apart.

We’re told Garner arrived first at around 7 PM … with J Lo following her five minutes later and Ben pulling up shortly after that.

All three appear to be in good spirits while out in the affluent West L.A. neighborhood … with Affleck and Garner seen walking together.

While we don’t know if the threesome chatted during the evening … clearly, Ben and Jenn G. chatted on their way inside, but it seems less likely Bennifer met up for a convo given the fractured nature of their relationship.

As you know … J Lo filed for divorce from Ben in August — sans lawyer. The two don’t have a prenup, and they’ve worked together on multiple projects during their marraige, so it’ll be a complicated split.

Laura Wasser — the disso queen – is mediating the divorce … just like she mediated Affleck and Garner’s back in 2018.

After the split, Lopez told comedian Nikki Glaser that being in a relationship shouldn’t define her … and. she’s looking forward to being on her own.