After consulting my sister/MOH, I purchased my nieces' flower girl dresses for them to wear to our wedding.
I'm very close with my sister, although she can be really bossy and controlling at times. Without consulting me, she decided to buy my nieces purple cowboy boots to wear to the wedding. When I told her it doesn't fit my vision (there is absolutely nothing country about our wedding), she started yelling at me. She said yelled, "You only get to choose what the BMs wear. You don't get to dictate what the flower girls wear, too!"
I don't feel like I'm dictating anything. All of our BP's wedding attire was chosen after consulting the BP, so it's not as if I'm marching around shouting, "You will wear this dress! You must get those pants!" I feel really bullied by my sister. Am I overreacting, or is she out of line? How do I proceed?