We've gotta hand it to the mother-of-three for taking the high road!

Ben Affleck and Jennifer Garner reunited to take their three kids to church on Sunday, but the two left separately and things didn't look overly friendly. No wonder, as the Oscar winner spent the entire weekend parading his girlfriend Lindsay Shookus around town. The lovebirds were spotted getting breakfast together in Santa Monica, and then he brought her to watch the Mayweather/McGregor fight at bestie Matt Damon's house!

The actor and the SNL producer's romance is moving at lightning speed, but Jen G wants to make sure her ex doesn't bring her around their children to her too quickly.

"Ben really wants to introduce Lindsay to his kids, but Jen has put her foot down. It’s taken the whole family a long time to adjust to the divorce. Bringing Lindsay into the picture could be very jarring," a source dished to In Touch.

"They’ve barely spent any time apart [sine going public in July] and have even talked about marriage. Jen’s in denial about how serious Ben and Lindsay are. She also doesn’t want Lindsay to play stepmom to her kids," the source added.

Seeing this family together is just sad these days! He threw this all way because he couldn't tame his wandering eye.