Ben Affleck & Sienna Miller 'Flirty' Cheating Scandal? Jennifer Garner New Movie Divorce Fight

By Danica Bellini, MstarsNews Head Writer | Dec 17, 2015 09:05 AM EST

Ben Affleck and Jennifer Garner announced their divorce earlier this year, but is the "Elektra" starlet still jealous of Affleck's alleged affairs with other Hollywood beauties?

According to the seedy gossip tabloid Life & Style, the 43-year-old "Gone Girl" actor was caught flirting with 33-year-old blonde bombshell Sienna Miller on the set of their new film, "Live By Night." Perhaps they didn't even hook-up yet, but 43-year-old Garner's still upset with her ex's recent actions. She immediately called him, and the former couple got into a HUGE argument:

"She told him that he has put her through enough humiliation and she doesn't want him to be seen with other women until their divorce is finalized," an alleged insider explains. "Jen was livid. They had a huge fight."

Affleck tried to remain civil, but Garner was absolutely furious:

"[He] told her he was working and there was nothing romantic going on with Sienna," the snitch reveals. "[But] Jen wasn't buying it. She told him if he really loves her and respects her as the mother of his children, then he needs to behave."

Funny enough, the same magazine insisted just last week that Garner wanted to have another baby to help "save" her marriage to the "Good Will Hunting" superstar. Yeah - right.

Well, GossipCop now confirms that all these reports are simply false:

Affleck has been nothing but a professional director and co-star with Miller, and Garner knows they are merely colleagues. These allegations are simply sensationalized nonsense.

So, what do MstarsNews readers believe?

Meanwhile, "Live By Night" is an upcoming crime drama scheduled for a 2017 release also featuring Chris Messina, Zoe Saldana, Elle Fanning, and producer Leonardo DiCaprio.

After meeting on the set of "Pearl Harbor" back in 2004, Affleck tied the knot with Garner in June 2005. They share three children together.

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