What would you think of adjusting lines 5: "her aDULterous HUSband now WANTS her DEAD"?
We're actually trying to work a couple of different aspects here - singability and comprehension. Can't always get both, but I think this will go if you work it over thoroughly, then put it away for a little rest, then have another shot at it. You can't revise every detail at once. Sleep on it, it will come right.