Jennifer Garner ‘one Ben Affleck outing away’ from John Miller breakup

Jennifer Garner’s relationship with John Miller is at stake after her cosy outing with ex husband Ben Affleck.

A source gave Page Six the inside scoop, saying, though Miller, 47, doesn’t feel threatened by Affleck, 52, he has taken serious action following Ben-Jen’s latest outing.

"[Miller] has always been supportive of Ben and Jen’s co-parenting relationship but feels Ben crossed the line," the insider claimed.

"John knows there’s nothing going on between Jen and Ben," the tipster emphasised, however, "he doesn’t think those photos are a good look and feels it’s disrespectful to their relationship."

The source further told the outlet that the CaliBurger CEO "gave Jen an ultimatum — he doesn’t want to see anything like that again or he has no choice but to walk away."

For the unversed, Miller seems disappointed with Garner, 52, after her cosy pictures with the Gone Girl actor went viral.

The Daredevil co-stars, who share three children, went out on March 2 to celebrate their son Samuel’s 13th birthday.

During their outing at the Combat Paintball Park in Castaic, California, the Oscar-winning actor was photographed affectionately grabbing the Elektra actress from the waist as she set her paintball gun on a target.

The former couple looked cosy and comfortable as they laughed and chatted while participating in the activities with their kids. In addition to Samuel, Ben and Jen co-parent Violet, 19, and Seraphina, 16.