Yes. It means fatigued by overwork (Exhausted). It also means made by dull, apathetic, or cynical by experience or by surfeit.
a cynic
Any form of illegal activity that is recorded in the past of an individual is referred to politely as a jaded past.
I believe it means they are not telling the complete truth
A person with a jaded heart believes there is no such thing as love. They will use others for their own pleasure not caring how it may hurt the person.