Ben Affleck is clearly not a fan of ex-wife Jennifer Garner's boyfriend John Miller and is reportedly causing ripples in their relationship.

Ben stated in a recent interview that his divorce from Jennifer was the biggest regret of his life. His comments caught John's attention who believes Ben is putting too much focus on Jennifer, and not enough on himself. As the former couple continues to co-parent their three children, it will be interesting to see the affect it will have on John moving forward. The couple have stated the importance of getting along for the sake of their children and if John can't accept that, maybe Jennifer will have to move on and find someone who can!