Jennifer Lopez and toyboy lover Casper Smart break-up after claiming the ‘spark’ is gone in their relationship.

The 44-year-old, who has been with her backing dancer beau for almost two years, has not been pictured with Smart, 26, in more than three weeks.

‘Jennifer is pretty private about the relationship, but she’s been hinting that the spark is gone,’ a source close to Lopez says.

‘She’s having a hard time ignoring the fact 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.