Wiktor Bialy voted up Anonymous' answer 4/12/2016 My best friend got a new neighbor, but she keeps trying to make me jealous with this neighbor by saying things like, "She's my new best friend!" And I don't think she knows she's doing it, but it hurts. How do I tell her to stop, nicely? Be firm but polite, let her know that that's something best friends don't do to each other. Good luck