Jennifer Garner's Quiet Romance With Boyfriend John Miller

The actress and the businessman have been dating on and off since 2018.

Published on Feb. 27, 2026

Jennifer Garner, the acclaimed actress, has kept her relationship with businessman John Miller largely out of the public eye since they began dating in 2018. The two have dated on and off over the years, maintaining a low profile despite Garner's A-list status. Miller is an attorney and entrepreneur who currently serves as the chairman of Cali Group, a restaurant technology company. Prior to his relationship with Garner, Miller was married to violinist Caroline Campbell, with whom he has two children. Engagement rumors swirled in 2024 when Garner was spotted wearing a diamond ring, but neither she nor Miller have commented on the matter.

Why it matters

Garner's preference for privacy in her personal life stands in contrast to the high-profile nature of her previous relationship with ex-husband Ben Affleck. Her quiet romance with Miller highlights the actress's desire to keep her love life out of the public eye, even as her fame and celebrity status continue to grow.

The details

Garner and Miller reportedly began dating in 2018, making their first public appearance together that November while attending a performance of the musical "Dear Evan Hansen" in Los Angeles. The couple has kept their relationship largely out of the spotlight, with a brief split in 2020 before reportedly rekindling their romance in 2021. Engagement rumors surfaced in 2024 when Garner was spotted wearing a diamond ring, but neither she nor Miller have commented on the matter.

  • Garner and Miller began dating in 2018.
  • The couple made their first public appearance together in November 2018.
  • Garner and Miller reportedly split in 2020 but later rekindled their romance in 2021.
  • Engagement rumors surfaced in December 2024 when Garner was spotted wearing a diamond ring.

The players

Jennifer Garner

An acclaimed actress known for her roles in films such as "Alias" and "13 Going on 30".

John Miller

An attorney and entrepreneur who currently serves as the chairman of Cali Group, a restaurant technology company.

Ben Affleck

Garner's ex-husband, with whom she shares three children.

Caroline Campbell

Miller's ex-wife, a acclaimed violinist with whom he has two children.

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The takeaway

Jennifer Garner's quiet romance with John Miller highlights the actress's desire to keep her personal life out of the public eye, even as her fame and celebrity status continue to grow. Their low-profile relationship stands in contrast to Garner's previous high-profile marriage to Ben Affleck, underscoring her preference for privacy in her love life.