What to do i am really starting to dislike the "best Man"?

I know this is my fiancé choice.. so I havnt argued his decision. Until today I really want to just yell right now.. I want to tell my finace that he can pick anyone else..( and trust me he has plenty to choose from) the thought of this hypocite ( the best man) giving a speech about how my fiancé and I are meant to be etc just breaks my heart. Background story short.. the best man’s girlfriend and I used to be good friends. Until his girlfriend and I had a fall out and decided that we were better off not being friends. Well this caused a drift between my fiancé and his best friend because he put her above all else. When we got engaged my fiancé still decided to ask him to be his best man since ( he had promised him this since high school) Ive tried to explain to my fiancé that people change and sometimes people that were once our best friends are now just friends and thats OK! We didn’t see eye to eye so I let it go. Now the thing that is causing me to really dislike the best man is due to the darn bach party. The best man called me last week asking me “what was appropriate for them to do” I told him that I wanted my fiancé to come home , and not have any kind of lipstick, wip marks on him. First of all why someone has to call me and ask me whats appropriate is beyond me ( trust me my fiancé got an earful that day) But my fiancé calmed me down by letting me know that he could care less about strippers being there that he was sorry he put me in that predicament and that the itinerary incuded them having a BBQ at his bros house and hitting up a bar at night.. he stated that it was more of a celebration of him being with his buddies than anything else. I feel like I know my fiancé enough that a day like that would be fun enough for him. Well I just got an email from one of my girls letting me know that the best man emailed her asking for her help.. because according to the best man “ im not letting my fiancé do anything”. Anything? Really? I cant help but feel like this guy could care less if my fiancé and I fought , I mean he lives with a girl that hates me pretty hard not to be bias. I just really feel disrespected that he has to go not only behind my back but also my fiancés back. Because im sure my fiancé has no clue that his best man is asking my girls to help him! WHAT TO DO?! I really – really don’t want him to be the best man.. I want someone up there that is sincere and is really looking out for the best interest of his friend.