"He was refusing to move out of Jennifer's house and even threatened legal action if Jennifer attempts to have the locks changed. He won't accept that the relationship is over," a source said.

Well, the 29-year old dancer has every reason not to move out from JLo's mansion as that would mean cutting off lots of luxuries and perks included in their relationship package.

"She cut off all of his credit cards and access to a bank account she'd established for him. She was very generous to Casper. Dating her has a lot of perks - private-jet travel, over-the-top vacations, attending only the best parties - so Jennifer questions whether he's in love with her or her lifestyle," the source added.

Reasons behind their recent breakup is yet unknown but a news outlet speculated that the On The Floor singer got furious with Smart when he attended the UFC fight in August 20 instead of escorting his girlfriend as she attended billionaire Ron Perelman's Hamptons fundraiser for the Apollo Theater on Saturday in August 20.

Smart is actually not prepared being single again and is reportedly hoping he will be seeing her again.

This is not the first time that the couple broke up and sources are now looking at the possibility that they may reunite one of these days.

Meanwhile, a separate report suggested that  Jenny on the Block may take a bolder decision in her love life, that of moving completely from Casper Smart and rekindling her romance with ex-husband Marc Anthony.

In a recent interview, the popstar openly expressed that she still loves her ex-hubby amidst breakup rumors with her boytoy.

"When we sing together, when they see us together, knowing our history, it brings a certain nostalgia. They know we care about each other and still love each other. We have two kids together and they love to see that things are good between us," she shared.

Previously, JLo sang together with Marc Anthony at the Radio City Music Hall in New York City as what she revealed in a photo which she captioned, #familia.

This will not be the last time that she will be seeing her ex-hubby as the two are reportedly collaborating on a new project.