Have Jennifer Lopez & Alex Rodriguez Reached A Breaking Point? Singer Is 'Positively Fuming' After Madison LeCroy Controversy, Source Spills

Foul play: Jennifer Lopez may be ready to call it quits with her ex-Yankee slugger beau, Alex Rodriguez, now that rumors are flying about his alleged affair with Southern Charm star Madison LeCroy, a source exclusively tells OK!.

During a January 28 cast reunion of the Bravo reality show, Craig Conover accused the hairstylist, 30 — who called it quits with costar Austen Kroll in December amid whispers of his infidelity — of traveling to Miami "to sleep with... ex-MLB players."

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J.Lo, 51, who got engaged to A-Rod, 45, in 2019 after two years of dating, "is positively fuming, and she has been grilling Alex about everything," dishes the source. "He swears he's innocent, and Jen is accepting his denials for now. But she's no fool, and she'll be watching him like a hawk."

The source adds: "At this rate, their friends are wondering if they'll ever make it down the aisle!"

Rumors surfaced after LeCroy claimed that she and A-Rod had spoken on the phone but never physically touched. "He contacted me, and yes, we DMed, but other than that there was nothing … I’ve never seen him [or] touched him," the blonde beauty said after Conover implied that she flew to Miami to hook up with Rodriguez.

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"He’s never physically cheated on his fiancée with me... All this stuff was a year ago [but] it’s being aired now. I don’t know what to do," she reiterated before noting that she and the MLB icon are "innocent."

While a source previously told OK! that "Jen isn’t about to throw away a great relationship that works for her and her family over a reality star trying to become more famous," it looks like the "On The Floor" crooner may be starting to have some doubts about her fiancé's innocence.

Prior to the questionable DM allegations that have friends worried, the Hollywood couple already had to postpone their wedding twice due to the ongoing pandemic.

"I think we just feel like, 'Let’s just wait it out.' There’s no rush. We’re good," she previously told Access Hollywood of their future plans to wed. "Everything’s cool. It will happen when the time is right."