Jennifer Lopez is taking control.

Hours after the singer, 55, filed for divorce from Ben Affleck on Tuesday, Aug. 20, a source tells PEOPLE exclusively that Lopez “was done waiting.”

“She tried really hard to make things work and is heartbroken,” adds the source. “The kids are a top priority, as they always have been.”

Multiple sources previously confirmed that Lopez, who’s mom to 16-year-old twins Emme and Max, filed at the Los Angeles County Superior Court and listed their date of separation as April 26, 2024.

Lopez and Affleck — who is dad to Violet, 18, Seraphina, 15, and Samuel, 12 (with ex-wife Jennifer Garner) — have spent much of their summer apart.

Jennifer Lopez in New York City on April 26, the separation date listed on her divorce filing. 

Ben Affleck and Jennifer Lopez at the Los Angeles Special Screening Of “Marry Me” on February 08, 2022 in Los Angeles, California. 

Another insider close to Lopez tells PEOPLE that the star is ready to “move on” from Affleck, 52.

“She’s very disappointed and sad, but Ben hasn’t given her any signs that he wants to continue their marriage,” says the insider.

Lopez and Affleck most recently reunited on his 52nd birthday, which an insider told PEOPLE he spent having a small “celebration at home” with his kids.

“It’s exactly what he wanted. He didn’t want to go out to celebrate. The kids had gifts for him, and it was cute. Jennifer [Lopez] stopped by to congratulate him,” the insider told PEOPLE, adding that Garner also stopped by his rental home in Los Angeles earlier in the day.