My best friends name is Nessa.She has been my best friend since kindergarten. We are now in middle school. Nessa has never been the jealous type, but she is getting clingy ever since I have been hanging out with this new girl Jacqueline. Nessa is really mean to her and her friends. Nessa even threatened to expel her. Jacqueline is super sweet and is not mean to Nessa. Nessa told me that I needed to stop hanging out with Jacqueline or ELSE! What should I do?