I need some help on what roll my future sister in law should play in our wedding. We have a rocky past...When i was first engaged she cried and said she couldn't be happy because she was too jealous. Then after i picked my wedding party she got upset she was not a bridesmaid and told me to my face!. My future husband's family is pretty close knit. His older sister is not upset she is not in the wedding party. I can't stand this....help please! I dont understand why someone is upset they arent in the wedding party when they had to be "convinced" to be happy for us in the first place!