Latest Update: How Ben Affleck’s ‘Growing Bond’ With Ex-Wife Jennifer Garner Is ‘Infuriating’ Her Boyfriend John Miller: ‘He Feels Like a Third Wheel….See More

Jennifer Garner’s longtime boyfriend, John Miller, is feeling uneasy about the close relationship between the actress and her ex-husband, Ben Affleck.

RadarOnline.com can reveal Miller “isn’t thrilled” about the increased time the former couple is spending together, allegedly feeling like a “third wheel” in his own relationship.

An insider claimed Miller “knows Ben and Jen have been leaning on each other more than ever lately and have a really close relationship”.

The source said: “Their growing bond is getting to be a bit much when Ben spends all the holidays with them like Christmas and Thanksgiving. John feels like a third wheel.”

Insiders claim Jen and Ben now “text, call, and communicate far more than they have over the past several years”.

They explained: “It used to be solely about the kids, but John feels like it could be more than just about their coparenting relationship.

“He doesn’t feel threatened in terms of Jen ever getting back with Ben, but at the same time it’s hard not to feel jealous when it’s clear they have a strong connection and friendship.”