Jennifer Garner‘s boyfriend John Miller is reportedly fed up with her close ties with Ben Affleck and has given her an “ultimatum” after images of the former spouses getting cozy hit the Internet.

Garner and Affleck have raised eyebrows as they continue co-parenting their children, but Miller believes that the actor took things too far by hugging the actress during a recent paintball session.

John Miller has also been spotted with his ex-wife, but an insider shared that Jennifer Garner is unperturbed by it and is secure in her relationship with the businessman.

Garner was allegedly issued an “ultimatum” by her boyfriend Miller after cozy images of her and Ben Affleck emerged.

Garner and Affleck got married in 2005 and welcomed three children together before announcing their split in 2015.

The pair have since struck up a cordial co-parenting relationship, which Miller remains “supportive of”; however, the CaliBurger CEO feels the “Argo” actor “crossed the line” with the hug.

“John knows there’s nothing going on between Jen and Ben, but he doesn’t think those photos are a good look and feels it’s disrespectful to their relationship,” a source told Page Six.

The insider added that Miller “gave Jen an ultimatum — he doesn’t want to see anything like that again, or he has no choice but to walk away.”

It comes after sources earlier shared that Miller was a bit bothered seeing his girlfriend “being touchy-feely” with her ex-husband, as rumors surfaced suggesting they could be reuniting.

However, it appears that the “Elektra” actress isn’t looking to start a romance with the “Gone Girl” star as a source told the Daily Mail that she’s “deathly afraid of falling back in love” with him because she still has “trust issues” from their broken marriage after he allegedly had an affair with their children’s nanny, Christine Ouzounian.

“It would get to anyone, but this is nothing new. Ben and Jen have a unique relationship, especially for exes,” the source explained. “She loves Ben but is worried that he will crush her all over again.”

“She doesn’t want to heal another broken heart because it is just too much drama, plus she does not want their kids to see round two of their mom in a bad place with their dad,” the insider said.

“So much could go wrong if they reunite,” they added.

Meanwhile, Miller was recently spotted in the company of his former spouse amid rumors that Garner and Affleck may be rekindling their romance.

The 47-year-old businessman was photographed out in Los Angeles with his ex-wife Caroline Campbell, days after Affleck finalized his divorce from Jennifer Lopez.

However, sources have shared that Garner isn’t bothered about her boyfriend’s close relationship with his ex and is fully secure in her relationship.

“Jen is more than aware of John’s relationship with his ex-wife Caroline,” a source told the Daily Mail. “They started dating when they were both in the process of finalizing their divorces. This really bonded them.”

“Jen knows Caroline and respects her,” the source added on Garner’s relationship with her boyfriend’s ex-wife.

According to the news outlet, Miller’s ex-wife Campbell is understood to be in a “long-term, happy relationship,” making both couples “super amicable.”

“So, John being spotted out with Caroline isn’t shocking to anyone,” the source shared.

They also noted that Affleck and Garner are aware of the rumors of a romantic reunion currently swirling online.

“Jen knows about the widespread speculation that she and Ben are going to work it out, as does Ben,” the source continued. “They laugh about it because they both know it’s not going to happen.”

Apparently, Garner’s boyfriend isn’t the only one bothered by her cozy sighting with Affleck, as the actor’s ex-wife Jennifer Lopez reportedly feels “betrayed” by the shocking photos.

“[JLo] saw the paintballing images when the rest of the world did, and of course, it will make her question things from their time together,” an insider told the Daily Mail. “Her friends have questioned how platonic Jen [Garner] and Ben are.”

They added, “She will feel betrayed because she invested so much time in supporting Ben through his challenges and had a rough year as their marriage broke down.”

The insider went further to claim Lopez now feels even worse with regard to some of the concerns she had about her ex-husband’s closeness to the mother of his kids.

“Seeing how quickly he has started spending more time with Garner has exacerbated the concerns she already had about his relationship with her while they were married,” the insider said.