It's like they're one big happy family... except they're not.

Ben Affleck and Jennifer Garner continue to spend a lot of time together for the sake of their kids. Over the weekend, the former couple took their three children Christmas tree shopping in the Pacific Palisades, and if there is any tension between them, they certainly don't show it!

The pair have been vocal about their plans to spend the holidays together, and we have to wonder how his mistress-turned-girlfriend Lindsay Shookus feels about being left out in the cold? If you believe a new report, the SNL producer is getting the feeling that she's always going to play second fiddle to her beau's actress ex.

"[Ben would] dump her immediately [for Jen.] She thought Ben was over Jennifer, because he truly convinced her that was the case. Now she’s telling friends that she knows ‘his heart isn’t with me,’” a source dished to In Touch about Shookus.

"Jen was so unbelievably supportive of Ben with his sobriety struggles. That has only made Ben love her more. He has told friends that the biggest heartbreak of his life was losing Jen as his wife," the source added.

We doubt it would ever actually happen, but we haven't given up hope of a reconciliation!