WATCH: 6 Things We Know About Ben Affleck's New Girlfriend Lindsay Shookus Let's take a look back at Affleck and Shookus' alleged relationship timeline. Interestingly enough, Garner made an appearance during Affleck's monologue at the time, to celebrate the actor hosting the show for the fifth time.
The two joked about Affleck's Best Picture acceptance speech for at the time.
"Both of them were cheating on their spouses so they were very careful about it," the source alleges., the romance began just a few months after Shookus became a mom to her daughter with Miller.
"[Affleck and Shookus] were sleeping together, sending each other cute texts and meeting up whenever they could," an insider close to Garner and Affleck reportedly claims to the outlet.
The two later left together with other friends and headed to the nearby Mandarin Oriental hotel bar.