Jennifer Lopez is reportedly on the verge of breaking up with Casper Smart.

The 43-year-old performer has apparently come to the realization that she really doesn't have a lot in common with her 24-year-old back-up dancer, and is beginning to feel like his babysitter.

A source told website RadarOnline: "Jen is currently on tour with Enrique Iglesias, and Casper is the head choreographer of her show in which he also dances. It's tough being on the road—this isn't Jen's first tour and she has been feeling more like Casper's babysitter than girlfriend.

"Casper likes to hang out and party with the other dancers and that just isn't Jen's scene. She is all business and is the utmost professional. Jen is absolutely going to break up with him, they just don't have a long-term future together."

Jennifer and Casper began dating last autumn, just a few months after her seven-year marriage to Marc Anthony ended in July 2011.

The first leg of her tour with Enrique Iglesias ends this month in Miami, Florida, and the second European leg begins in Portugal in early October.

The insider added: "Casper will most likely be sent packing when the tour ends in Miami. Jen admits that she fell for Casper and that he was exactly what she needed at the time to help get over her painful split with Marc, but she is just ready to move on now."