I am so fed up. My husband went to the flat today to see if J had left or not.
She is still there. All of the windows were open and he saw a hand chucking stuff out of the kitchen window. I could have cried when he told me.
Ought to mention here that one of the things the couple in the flat below complained about was J's extraordinary habit of lobbing teabags out of her kitchen window. They would find teabags on their kitchen windowsill on a daily basis. At the time we were told this, we went to the side of the block of flats and sure enough, there were hundreds of used teabags on the grass beneath her window. And the couple in the flat below were able to show us several teabags sitting on their sill.
So therefore when my husband saw a hand throwing something out of the kitchen window, it is clear that not only is J still in situ, but the dirty bint is still chucking teabags out of the window...for whatever reason she feels the need to do so.
Can't really focus at the moment so will sleep on the situation and work out what to do for the best tomorrow.
But in the meantime my head hurts from the pressure of it all.

Sorry to hear of the lack of progress. It must be very disheartening and the story of the teabags is a strange one.
It's not easy but try and stay positive because somehow, someway you'll get past this and it will all be behind you.