Interesting enough. You'd

better find out why she is jumping all over the place about the fence. Check on your house recordation or have a professional surveyor to survey your property. If your fence is on her property, I suggest you to approach her and have the problem resolved. If on your property, you can do whatever you want and she has nothing to do with it. For a better relationship, may want to have some dialogue going. At least you all live close to each other.