Jennifer Garner's Boyfriend John Miller Replacing Ben Affleck? CEO Bonds With Their Kids

Jennifer Garner's boyfriend, John Miller, has reportedly grown close to her and Ben Affleck's kids.

Garner's relationship with Miller seems to be going strong, with some sources even claiming the wedding bells are in their future. But while there is no news of an engagement as of now, a source told Entertainment Tonight earlier this year that the Cali Group CEO, who two kids of his own from a previous marriage, has been bonding with Garner and her three children: Violet, 13, Seraphina, 10, and Samuel, 7.

"John's been at their Palisades house so much lately," the insider claimed. "They all [John, Jen and their kids] stay up late playing board games."

According to the source, Miller, who was previously married to concert violinist Caroline Campbell, has even taken Garner and their kids "to the mountains together" as the businessman "loves to do outdoorsy things."

But while their kids might be forming a bond with Miller, Affleck also spends a lot of time with the children and takes daddy duties seriously. Even after he and Garner ended their decade-long marriage in 2015 and finalized their divorce in October last year, the "Justice League" star has been frequently spotted with their children and often reunites with Garner as well.

Just last week, Affleck was photographed holding his two youngest children's hands as they took a stroll in Los Angeles, according to Daily Mail. The actor appeared to be taking Seraphina and Samuel to school as the two kids were dressed in their school uniforms and carrying books.

Affleck recently opened up about fatherhood and co-parenting their kids with Garner during an appearance on the "Today" show. He told host Hoda Kotb that he hopes he is "a pretty good dad" to his kids as he tries "very hard" to be so.

"I’m lucky they got a great mom, and she helps out a great deal with making sure that we co-parent in as good a way as possible," he said.

Affleck has recently been spotted hanging out with ex-girlfriend Lindsay Shookus, sparking rumors that he has gotten back together with the "Saturday Night Live" producer.