It's difficult to be The Ghost Whisperer when you feel like a heart breaker.

A source on the set of Jennifer Love Hewitt's hit show says the actress isn't handling her break up with Ross McCall very well.

"She is usually very bubbly, but she is more quiet and seems sad," the insider told People Magazine. "She usually hangs out with the crew between takes, but [Tuesday] she is only hanging out with her bodyguard."

So, why didn't the beauty just skip work for a bit?

"She is always so professional," the source said. "She would never even think to miss a day of work because of personal problems."