Joke:- Who hates their spouse even in death?

An old man and woman hated each other, but remained married for years. Each time they fought, the old man would warn his wife,
OLD MAN:”If I die first, I will dig my way up and out of the grave to come back and haunt you for the rest of your life!”
One day, the man abruptly died. After the burial, the wife went straight to the local bar and began to party. Her friends asked if she wasn’t worried about her husband digging himself out of the grave.
The wife smiled and said, “Let the old fool dig. I had him buried upside down!”

ONE WORD FOR THIS WOMAN?