I just got engaged 3 days ago and my mom has already started showing opposition to my wedding plans. After a snide comment from her tactless "best friend", her attitude shifted from cheerful and congratulatory to belligerant and bitter. She is upset about the fact that my engagement ring is a plain titanium band. I chose it myself and it was difficult to even find a ring because I am allergic to nearly every metal that is used to make jewelry. Also, the fact that my fiance and I are having a very non-traditional wedding is also a source of conflict. My fiance and I are paying for the entire wedding, so this really shouldnt be an issue. Everyone else in our lives is absolutely thrilled about our upcoming wedding. I am so happy to be engaged, but I am absolutely appalled by my mom's behavior. What should I do now?