I am so pissed off!

So this chick that I had previously asked to be in my wedding has constantly commented on my fiancés and my miscarriages and how we are "fucked up" and should give up because what's the use. She constantly is trying to cause drama with me ( I just ignore the drama) her boyfriend is my fiancés best friend and best man. I haven't been talking to her because I am so offended by her comments on my miscarriages and my life. So tonight she texts and asks if she is still in the wedding and I tell her no and she flips out and then writes on Facebook about it. I am so frustrated with her I could just explode. It is MY FIANCÉS AND MY WEDDING it is NOT hers. I do not care what she thinks my wedding should be. I don't even want to invite her to the wedding at this point. I don't want her there at all but because her boyfriend is the best man and my fiancés best friend I feel obligated to invite her. Ugh I am so pissed. Just needed to vent. Oh also she commented on my wedding dress and how much she hates it. I told her "well good hing you don't have to wear it"