Casper Causes J.Lo & Marc Anthony's Divorce To Get Ugly! (DETAILS)

Here we go, another divorce is turning ugly.

AOL Music reported last week that what was a once civil break up is now going awry between Jennifer Lopez and Marc Anthony.

The two were married for 7 years and are now entering a feisty battle. Reportedly Marc isn't too happy with Jenny's new relationship with 24-year-old Casper Smart. And he isn't too keen on Casper hanging around the kids and driving them around either. 

"[He's] going back on his word and saying he wants joint custody," claims an insider.

"[Marc] wants to make Jennifer suffer," continues the source. "Because she's having fun with someone new, and he knows this will hurt her on the deepest level."

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Despite having already agreed on the American Idol judge having primary custody, it's apparent the Marc has had a change of heart and now wants joint custody of their twins.

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Let's hope these two can come to a mutual understanding. We wouldn't want Max and Emme suffering with parents who can't get along.

Do you think Marc is being reasonable?