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EXCLUSIVE: Ben Affleck's Worst Nightmare! 'Batman' Hunk Devastated Over Ex Jennifer Garner's Wedding Plans With Boyfriend John Miller... Because He Thought They Would Get Back Together

photo of ben affleck and jen garner
Source: MEGA

Ben Affleck is devastated as his ex, Jennifer Garner, is planning a wedding with John Miller.

Sept. 21 2025, Published 7:00 a.m. ET

Jennifer Garner is finally ready to say "I do" with boyfriend John Miller and the proof is she's openly wearing an engagement ring, but sources said it has plunged ex-hubby Ben Affleck into a deep funk.

RadarOnline.com can reveal the Batman hunk, 53, never believed the 53-year-old Elektra beauty – mom of his kids Violet, 19, Fin, 16, and Sam, 13 – would remarry and this is his worst nightmare.

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Ben's Torture

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Jennifer Garner was seen wearing an engagement ring while planning her wedding with John Miller.
Source: MEGA

Jennifer Garner was seen wearing an engagement ring while planning her wedding with John Miller.

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"For Ben, it's torture," said a source. "He was clinging to the hope she'd have second thoughts and call it off, but now that's clearly not happening.

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"He has to get his head around the fact she'll be officially wed and tied down to someone else who's going to be living under the same roof and spending time with his kids."

While buzz claimed Garner and Affleck were growing closer since his divorce from Jennifer Lopez, the 13 Going on 30 beauty is now openly flaunting her ring and reportedly planning a wedding with Miller.

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Wedding Planning

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Miller was spotted with Garner in Brentwood.
Source: MEGA

Miller was spotted with Garner in Brentwood.

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An insider said: "Jen has been back and forth on whether to marry John for a while. Now she's telling friends it's happening and how happy they both are and John's her soulmate.

"She's looking into the perfect venue and the invitations she wants to send out, the music, the guest list. It's open knowledge among her friends she's knee-deep in wedding planning."

Garner and businessman Miller, 47, a Stanford grad and head of the CaliBurger eateries and Cali Group investments, were recently seen strolling in the Brentwood area.

"She had no makeup on, her hair down. He wore a coat and jeans. There was a lot of affection between them," said a source.

"They held hands and kissed – just a very normal couple with no Hollywood weirdness."

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Ben's Solo Birthday

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Ben Affleck marked his August 15 birthday with a quiet lunch outing alongside his children.
Source: MEGA

Ben Affleck marked his August 15 birthday with a quiet lunch outing alongside his children.

And that leaves Affleck out in the cold.

He spent his August 15 birthday – his first since his divorce from J.Lo – on a low-key lunch with Fin and Sam instead of a big blowout with celeb friends.

They were spied at the Huckleberry Café, a Santa Monica farmers market bakery and eatery.

Noted the source: "Ben's having a tough time of it. Pals are checking in and making sure he's okay."

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