I totally agree with it being annoying- but also agree that keeping nice (even if she annoys the heck out of you) is a really good idea. A 'watchful' neighbor that is friendly with you- will call the police if there is somebody creeping around your house, or the fire dept ect. She can be asked to let your chickens in/out if you have to go out of town on emergency. She will tell you if your chickens get out, or if there is a stray dog on the property. When she comes over, start asking her to help to do things (weed, move straw, gather eggs)- if she likes it, she might be actually useful for you. If she doesn't like it, she will come over less and less often as it is awkward to turn someone down when they ask directly for help. She is bored, and needs to get a life- but while she is hanging onto your every word- make her useful.