Jennifer Lopez is about to be the next “Gone Girl.”

Ben Affleck has “come to his senses” about his failing marriage to the singer and knows they are headed for a divorce, a source tells Page Six exclusively.

“If there was a way to divorce on grounds of temporary insanity, he would,” our insider shares. “He feels like the last two years was just a fever dream, and he’s come to his senses now and understands there is just no way this is going to work.”

Reps for Affleck and Lopez didn’t return Page Six’s numerous requests for comment.

The Grammy nominee, 54, and the “Air” actor, 51, first sparked split rumors when she attended the 2024 Met Gala solo earlier this month despite serving as one of the exclusive event’s co-chairs.

Upon further examination, fans realized that the “Gigli” co-stars had not been photographed together in more than a month.

Potentially having seen the headlines about their sudden inconspicuousness, Lopez and Affleck made sure to be spotted attending his child Seraphina’s school play together last week; however, the sighting did not lessen fan concern about Bennifer 2.0’s marriage, as the “Hustlers” star had “liked” an Instagram post about unhealthy relationships.

Sources also told Page Six that Affleck has been “house-hunting” around Los Angeles while living separately from his spouse.

We were also told that Lopez was doing the same, though an insider clarified she was merely searching for an investment property.

The Oscar winner and J.Lo again stepped out together again over the weekend, but Affleck, who was wearing his wedding ring, appeared flustered as the pair made their way through a parking garage toward an elevator bank to gain entry into Soho House.

Earlier in the day, the couple attended a movie event with their kids and seemed to send a message with the “Good Will Hunting” star’s phone.

As he drove off with Lopez in the passenger seat, Affleck made sure to give a paparazzo a glimpse of his cellphone, which showed he was receiving a call from “Jennifer Affleck” — despite their close proximity.

After calling off their initial engagement in 2004, the “Greatest Love Story Never Told” documentary subjects reconciled in 2021 and eloped in Las Vegas in July 2022.

Their blended family — including children with Jennifer Garner and Marc Anthony — gathered together for a star-studded soiree the following month for a second wedding at Affleck’s Georgia estate.