Hilarious description!

I say a friendly nutty neighbor is better than a spurned one. So I would go passive aggressive too getting her to back off. Keep thanking her for the food and throwing it out and don’t give her anything in return. Maybe return the dishes dirty. Maybe tell her you have mono and she should stay away so she won’t catch it.

I put up with my neighbors dog crapping in my yard for years until the dog died rather than make an enemy of the next door neighbor.