"Jen has been around long enough to know that anyone she dates could possibly turn on her and choose to go to the press if the relationship sours. Casper had absolutely no qualms about signing the agreement, and has told Jen on multiple occasions that even if he didn't work for her, he would have signed the contract. Jen loves him even more for that," said the source.
The formerAmerican Idol judge, who won't be returning for the show's upcoming twelfth season, and Smart started dating a few months following her separation from third husband and Latin singer Marc Anthony.
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