I write books. A neighbor used to come to my author talks and book signings, but in the past year or more has been avoiding me for no reason. I still say Hello to her, but she barely says that. Could she be jealous. I have never done anything to cause this. Most people congratulate me for the books. She no longer acts interested and looks very sad.

Ask her. Tell her you miss her.

I also think I would ask her what's wrong and go from there. I wouldn't assume this is about you without talking to her.