Jennifer Garner’s boyfriend John Miller is a good influence on Ben Affleck

No bad blood here! Jennifer Garner’s boyfriend John Miller is a good influence on her ex-husband Ben Affleck, a source exclusively reveals in the new issue of Us Weekly.

“Jen having a boyfriend has been the best thing to happen to Ben and Jen in a long time,” says an insider, noting that “Ben’s become a better parent.”

Since their split in 2015, the actor has stepped things up in his role as dad to Violet, 13, Seraphina, 10, and Samuel, 7.

“He’s really showing Jen that he can be a better person,” says a source about the Justice League star. “They’re coparenting in a way they never have before.”

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Jennifer Garner and kids at her Walk of Fame ceremony
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Jennifer Garner and kids at her Walk of Fame ceremony
Actress Jennifer Garner receives a star on the Hollywood Walk of Fame, August 20, 2018 in Hollywood, California. - Garner, who received the 2,641st star in the Motion Picture category, stars in the soon to be released film 'Peppermint.' (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
HOLLYWOOD, CA - AUGUST 20: Jennifer Garner (second from R) and family attend the ceremony honoring Jennifer Garner with a star on the Hollywood Walk Of Fame on August 20, 2018 in Hollywood, California. (Photo by Steve Granitz/WireImage)
Actress Jennifer Garner poses with members of her family at her star on the Hollywood Walk of Fame, August 20, 2018 in Hollywood, California. From left are parents Patricia Ann Garner and William John Garner, her children Violet Affleck, Seraphina Rose Elizabeth Affleck, Samuel Garner Affleck and her sister Melissa Garner Wylie. - Garner, who received the 2,641st star in the Motion Picture category, stars in the soon to be released film 'Peppermint.' (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
Actress Jennifer Garner receives a star on the Hollywood Walk of Fame, August 20, 2018 in Hollywood, California. - Garner, who received the 2,641st star in the Motion Picture category, stars in the soon to be released film 'Peppermint.' (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
HOLLYWOOD, CA - AUGUST 20: Jennifer Garner and her daughter, Violet Affleck attend the ceremony honoring Jennifer Garner with a Star on The Hollywood Walk of Fame held on August 20, 2018 in Hollywood, California. (Photo by Michael Tran/FilmMagic)
HOLLYWOOD, CA - AUGUST 20: Jennifer Garner (L) and Samuel Garner Affleck attend the ceremony honoring Jennifer Garner with a star on the Hollywood Walk Of Fame on August 20, 2018 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - AUGUST 20: Seraphina Rose Elizabeth Affleck (L) and Samuel Garner Affleck attend the ceremony honoring Jennifer Garner with a star on the Hollywood Walk Of Fame on August 20, 2018 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - AUGUST 20: (L-R) Susannah Kay Garner Carpenter, Jennifer Garner, and Melissa Garner Wylie attend the ceremony honoring Jennifer Garner with a star on the Hollywood Walk Of Fame on August 20, 2018 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - AUGUST 20: Jennifer Garner with her parents and sisters at the ceremony honoring Jennifer Garner with a Star on The Hollywood Walk of Fame held on August 20, 2018 in Hollywood, California. (Photo by Michael Tran/FilmMagic)
Actress Jennifer Garner receives a star on the Hollywood Walk of Fame, August 20, 2018 in Hollywood, California. - Garner, who received the 2,641st star in the Motion Picture category, stars in the soon to be released film 'Peppermint.' (Photo by Robyn Beck / AFP) (Photo credit should read ROBYN BECK/AFP/Getty Images)
HOLLYWOOD, CA - AUGUST 20: A general view of atmosphere at the ceremony honoring Jennifer Garner with a Star on The Hollywood Walk of Fame held on August 20, 2018 in Hollywood, California. (Photo by Michael Tran/FilmMagic)
HOLLYWOOD, CA - AUGUST 20: (L-R) William John Garner, Violet Affleck, Seraphina Rose Elizabeth Affleck, Jennifer Garner, and Samuel Garner Affleck attend the ceremony honoring Jennifer Garner with a star on the Hollywood Walk Of Fame on August 20, 2018 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - AUGUST 20: (L-R) Steve Carell, Jennifer Garner, Judy Greer, and Bryan Cranston attend the ceremony honoring Jennifer Garner with a star on the Hollywood Walk Of Fame on August 20, 2018 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - AUGUST 20: Jennifer Garner speaks during the ceremony honoring Jennifer Garner with a star on the Hollywood Walk Of Fame on August 20, 2018 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - AUGUST 20: Jennifer Garner attends the ceremony honoring Jennifer Garner with a star on the Hollywood Walk Of Fame on August 20, 2018 in Hollywood, California. (Photo by Alberto E. Rodriguez/Getty Images)
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The Oscar winner, 47, is more involved in the kids’ lives, and has even started taking over important family responsibilities, like handling the kids’ school activities.

“He ultimately just wants to be the best father he can be and part of that is continuing a loving relationship with Jen,” adds a source.

The Gone Girl actor is also getting along great with Cali Group CEO, 41, too. “Ben has no problem with John,” says the insider, noting that Miller’s daughters from a previous marriage have had “playdates with Jen and Ben’s kids. Ben totally trusts him.”

Us Weekly broke the news in October 2018 that Garner, 47, and Miller had been dating for several months. Since then, things have been going smooth sailing for the pair. A source even told Us in January 2019 that an engagement could be imminent.

“No one would be surprised if they got engaged. John has discussed marrying Jen,” the source said, noting that the Peppermint star “admires John because he is just normal.”

Jennifer Garner Boyfriend John Miller Good Influence Ben Affleck

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