Accept your neighbor exactly as she is. If you want to help her, treat her with respect and pleasant small talk. Knowing that her closest neighbor accepts her, is very likely, the nicest gift she has received in years.

I had a neighbor like yours. I waved hello every time I saw him. But it was five years before he waved back. One day Pepsi walked on over, to ask if everything was okay with me. Turns out he'd waved at me, and I had not waved back. That old man, may have been an eye sore, but he watched over our neighborhood.