Removing a Bridesmaid?

Hello! My wedding is on 05/06/22 and I currently have 4 bridesmaid. Two maids of honor (my sisters), my oldest childhood friend and my boyfriend’s best friend’s girlfriend, who I’ve recently gotten close with over the past 2 years (we will call her “B”).


So B and I have had a falling out recently, about 3 months ago. I made the mistake of making a joke about one of her friends, which was not taken well. I apologized (the morning after it happened and a month later) but things still don’t seem right. She had avoided me for a whole month and the friendship has become very strained.
Here’s the kicker: her boyfriend is my fiancé’s best friend. He’s a groomsman and he also lives with us.
I am pretty confident that B and I will no longer be friends, and I don’t want her to be a bridesmaid. I’ve become so bitter with the way she’s been treating me. I just don’t want this to ruin the friendship between my fiancé and his best friend. I also don’t want his best friend to drop out of the wedding. What do you think I should do? Do you think I should suck it up and allow this person who does not care for me at all to be in my wedding? Or should I kick her out?
P.S. B and her boyfriend are looking at apartments together. So we’re hoping that B’s boyfriend won’t be living with us any longer.