My sister is 19, almost 20 and really immature. She has already declared herself my MOH without talking to me. I had been planning on asking my BF to be my MOH for a few reasons. First, my sister is planning on being in New York to do City Year the entire 10 months before my wedding. Therefore, she will not be available to help with all of the big things like putting invitations together, running errands, etc. My BF will be around and doing all of that. Second, my sister is not very reliable and I do not like asking her to do things because they will not get done. I have tried numerous times to rebuild trust in her, and more often than not, she destroys that trust. To top it off, she has already gone to my BF, behind my back, and told her that they should split the duties. My BF agreed with her thinking that I had made them both MOH's. I didn't find out about this until I was talking to my mom about something related to BM's and MOH's and my sister said that she and my BF had already worked out that they were going to be sharing the duties. On top of all of that, my sister has decided that to tell me what I can and cannot dress her in. "This dress/color is hideous. You seriously cannot go with that for your wedding. I will never speak to you if you do." I have half a mind to tell my sister she will not be involved in any way at this point, but I know that will create a ton of family drama. Any advice?
