This girl isn't my bridesmaid, but I am one (of 10) for her. She is my MUA. She went and had some services done where my sister works, she didn't know she worked there. Then one day she tells me about this "terrible" worker that she complained to corporate about and has been trying to get her fired. When I asked what she looked like, she gave a generic description that could have been anyone. So I recommended my sister for the next time she went. I told my sister that she had a bad experience. Once my sister heard the friend's name she knew exactly who it was and told me how terrible my friend had acted. And I know for a fact my sister knows how to do her job and the friend can be over dramatic. So now the friend is posting on social media about my sister in a passive aggressive manner and it's pissing me off! The friend texted me and said, "Your sister looks like the girl." and "Yeahhh it was your sister." My sister knows how to do her job and they obviously aren't going to get along. Having my sister in my wedding is more important that having the friend do my makeup. But I agreed to be her bridesmaid before she tried to get my sister fired. Not sure how I should handle this. Originally, I didn't concern me, but she is complaining about my sister on social media and I'm mad.