I'm planning to put moldy sauce on the woman's pasta.
You do know that that is probably a crime?
It might be a crime but this bitch doesn't deserve to eat. This is what she deserves.
No matter what she has done, you do not have the right to put moldy sauce on her pasta. It is wrong to contaminate other people's food. You can cause her great illness or even death.
You don't know about my grudge. It's fine, I'm doing this to show her what she did to me.
It could get you into trouble with the law though! Putting mold on her food is pretty dangerous. You should try to talk out your issues instead of messing with her food.