Jennifer Garner and John Miller seek couples therapy amid tensions over 'third wheel' Ben Affleck

LOS ANGELES, CALIFORNIA: After nearly seven years of navigating the ups and downs of their relationship, Jennifer Garner and her boyfriend, John Miller, are reportedly turning to couples therapy in a bid to save their romance.

According to insiders, the reason behind this is none other than "third-wheel" Ben Affleck, who has been leaning on Garner for support since his divorce from Jennifer Lopez.

Jennifer Garner's boyfriend John Miller is struggling with 'third wheel' Ben Affleck

Jennifer Garner, 52, and John Miller, 47, have been in an on-again, off-again relationship since 2018. Despite their strong bond and attempts to build a life together, sources claim one recurring obstacle pushing the couple to the brink is Affleck.

Radar Online reported that Affleck’s ongoing presence in Garner’s life, not only as the father of their three children, Violet,19, Fin, 16, and Samuel,13, but as a constant emotional presence, is weighing heavily on Miller.

"John has been so patient with the whole Ben situation, but it's really grating on him. He loves Jennifer and doesn't want to lose her, but there's only so long he can stand having a third wheel in this relationship before he cracks," a source told the outlet.

John Miller demands that Jennifer Garner set 'better boundaries' with Ben Affleck

Jennifer Garner and Ben Affleck, who finalized their divorce in 2018 after over a decade of marriage, have continued to co-parent their children amicably.

But Miller reportedly feels that Garner’s emotional door remains a little too open for her ex-husband, which is testing his patience. 

"John is demanding that she set better boundaries with Ben. He's not asking her to boot him from her life completely, but he's sick and tired of being made to look like some sort of fool," the tipster explained.

The concern isn't just emotional intimacy, it’s also the sheer frequency of Affleck’s presence.

"Ben is always over at the house and usually stays for dinner, and he's there on every holiday of the year, too. No matter how hard Garner tries to distance herself from Affleck, he hangs around like gum stuck to the bottom of her shoe," the insider added.

Jennifer Garner always seems to slip back into the same dynamic with Ben Affleck

This ongoing dynamic has reportedly led to recurring arguments between Jennifer Garner and John Miller.

"Jen and John have been having this same conversation for nearly a year, and no matter how many times she promises to handle things differently, she always seems to slip back into the same dynamic with Ben," the insider shared.

It appears the only way forward might be with professional help.

"It's becoming clear that therapy may be the only way they can resolve this issue, so they're looking for a good counsellor they can trust. Hopefully, couples therapy will work out better for Jen and John," the source added.

This comes just weeks after Page Six reported that Garner and Affleck were seen with their arms around each other while celebrating their son Samuel’s 13th birthday at Combat Paintball Park in Castaic, California, on March 2.

The cozy display, though likely innocent, may have stung Miller, adding to the ongoing tension.

However, on the other hand, Miller was seen spending time with his ex-wife, Caroline Campbell, on March 11 and getting into the same car while out in Los Angeles.