Christina Haack, unsurprisingly, was not.
The 42-year-old car aficionado and 52-year-old Oscar-winning actress looked head-over-heels for one another at the grand gala event held at the Lyon Air Museum in Santa Ana, California, hosted by Radford Motors to celebrate the unveiling of the new Lotus Type 62-2 race car.
Ant was one of three people who'd been working to revive the Radford Motors coachbuilders brand, so in addition to having a star on his arm, he was a star himself that evening.
And his joy was palpable. Anstead shared various snaps from the night to his Instagram Story, making his relationship with Zellweger IGO (Instagram official) as well.
As for Christina Haack's other ex-husband, Tarek El Moussa, he also documented the posh evening, even sharing some videos of Anstead's unveiling and tagging the English TV personality on his Instagram Story.
Of course, his fiancée, Heather, made it to the actual feed. "Last night," he captioned a photo of the dashing couple posing outside before the party. "A night out filled with friends, cars, and my love @heatherraeyoung… no complaints here. What'd everyone do this weekend!?"
Last month, Tarek gushed over Ant and Renée's romance, telling People, "I love it! I love it! Good for him. Ant's a great kid, [Zellweger] seems like a lot of fun. I like them. I like the setup."
No word on how he feels about Haack's new man, Joshua Hall, but after she told the whole world that she met the former police officer following a psychedelic trip from smoking a Bufo toad, El Moussa reportedly went off on his ex on the set of their joint HGTV show, Flip or Flop.
As for Anstead and Zellweger, rumors the two were romantically linked started swirling in June. Since then, the twosome has been seen spending lots of time together – from chilling at Ant's Laguna Beach home to going for PDA-packed bike rides and even taking his almost-2-year-old son (who he shares with Haack) out for a stroll.