Dream?

Ok. This was the second time I’ve had a dream like this - details were slightly different, but same concept. I have dreamed that my husband showed up in my life and claimed to have faked his death. I keep saying to him “I touched your skin - it was cold and mottled - there’s no way you faked anything”. Then I get really angry, like enraged, and end up having what I think is a nervous breakdown. Then I wake up - no where near rested. What does this mean? Why can’t I have pleasant dreams about him?