Ugggg, I'm so sorry for you! I had followed along with the ongoing saga and I just can't believe it was them the whole time! I agree with a poster above, it sounds like she has some sort of dementia. It all just doesn't make any sense, saving you egg cartons, throwing scraps to the chickens, all your conversations with them...it just doesn't make any sense at all.
Regardless of the legal issues you've gone through, I know it hurts, thinking all this time they were supportive and sweet elderly neighbors, only to have it come crashing down. I think we're very similar in that way, I, too, wouldn't be so much mad, but extremely hurt by it all and that can be much worse in the longrun. Please try and keep your head up and not be held a prisoner in your own home. (and save for that privacy fence!)
From your post, it sounds like your last confrontation that sealed the deal was a while ago, but have you thought about going over there and opening up to them about how you feel, how you just don't understand at all and asking why? Or even write them a very honest letter? Even if its not for their benefit, but to help you get the weight off your chest?
Gosh, I'm so sorry.