By Staff Reporter (staff@latinospost.com) | First Posted: Feb 21, 2014 12:09 AM EST

Are Jennifer López and boyfriend Casper Smart heading for a breakup? According to Radar Online, the singer and actress and her much younger beau are at very different places in their lives and are having a hard time staying together.

"Jennifer is pretty private about the relationship, but she's been hinting that the spark is gone," said a source close to the 44-year-old star. "She's having a hard time ignoring the fact that her head has been telling her for a while that this thing with Casper isn't forever. And now her heart's saying the same thing."

The source continued, "They're obviously in very different places in their lives, and Jennifer wants to take responsibility for her life and not repeat the same mistakes she has made in the past. She enjoyed the relationship for what it is, but now that giddiness has turned to sadness."

According to the source, Lopez has tried breaking up with the dancer several times. The site also pointed out the couple has not been photographed together since Sept. 21 and that when she attended the Human Rights Campaign national dinner on October 5 in Washington, D.C., they weren't spotted together.

The source claimed that during a shoot for Viva Movil in New York City on June 14 it was said Lopez and Smart had broken up.

"She seemed down and looked tired, like she hadn't slept well. She holed up in her trailer for hours when she wasn't needed for her scenes, and asked for vanilla Haagen Dazs ice cream and white flowers. It was obvious she was a million miles away," the source told Radar Online.

"Jennifer's team started scheduling all her major appearances solo," the source added. However, the singer reportedly took Smart back since he has a close bond with her twins, Max and Emme.

"It's hard for her to think of how to it explain it to the twins," the source said. "They love Casper. Jennifer's probably going to at least stay friends with him so hopefully it won't be as dramatic as it's been talking to them about her split from their dad [Marc Anthony]."

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