Jennifer Lopez and Casper Smart may have cooled off.
On August 3, Radar Online reported that JLo and her much younger boyfriend are on the verge of a split.
The main reason that the couple isn't getting along is that Lopez feels like she's more of his mother than his girlfriend.
The two have been traveling the country together on tour and according to a source, JLo just isn't feeling it anymore.
Jennifer Lopez is "getting frustrated" with Casper Smart, according to friends who also say her family are "watching him closely".
The 43-year-old singer and actress started dating the back-up dancer last year following her split from Marc Anthony but friends of the star say she is losing patience with her lover.
A source told People magazine: "[Jennifer] is getting frustrated with him and she's increasingly short-tempered when she's around him."
"He's moved into her life - and a little too easily, too. I think her family is watching him closely."
Jennifer's feelings are surprising considering last week her 25-year-old boyfriend threw a lavish bash for her 43rd birthday, on the yacht Utopia III, which is owned by Market America co-founders JR and Loren Ridinger.
However, friends don't believe the relationship will end soon as they think Jennifer, who has twins Max and Emme with Marc, will want to have a new love interest in her sights before she breaks up with Casper.
The source added: "Jennifer is the kind of girl who doesn't like to be alone. Until she finds a replacement, I think, he's around."