Ben and Jen have found their groove and we hope it lasts!

After completing rehab and getting his footing, Ben looks like the model dad -- coaching his son Samuel's baseball team, taking the kids out to lunch after a game, comforting daughter Seraphina as she confides in her dad. So sweet!

And that's not the only thing that's balance in Ben's life ... he's back together with longtime love Lindsay Shookus! The New York-based SNL writer is wracking up the frequent flier miles, jetting back and forth between the coasts to see her man. The pair were out on a sunny Saturday walking Ben's dogs and looking happier than ever.

Speaking of happier than ever -- Jen was getting glammed up the other day at the nail salon ... perhaps preparing for a night out with her man John Miller. And she's getting ready to move into her new Brentwood mansion that she built from the ground up. It's a new start for Ms. Garner and it's about time!