(((((((((Tomi)))))))))))
I don't think you are. My plants are my babies too... I only have windowsill ones since I live in rez though, left them with my roomate (while on holidays) and one of them died. I was not impressed. So never letting her take care of them again.
1. Wish I could give you advice about the lady neighbour. Most of the people I ignore eventually take the hint...
2. Sorry about your plant

Once again, no advice. I suck at advice.
Just wanted to let ya know I read, and I'm sorry you're dealing with such annoying people.