Groomsman-zilla

So, my fiancé’s best friend (let’s call him B) has been nothing but frustration. Some of you may remember the post a while back about him wanting to wear a very ugly hat at our wedding. So, I finally caved and said he could wear it during the reception but please not for the ceremony or for photos (the hat is to cover up the back of his head where he had a rash so bad it turned into a scar as a child) since no one would see him from the back and I think he looks great without it. Well, the only things we’ve asked any of the groomsmen to do is wear a white long sleeve button down shirt, and buy this 15$ pair of khaki dress pants from Amazon (all of them live in different states), and show up on time. I bought them each about 20$ worth of accessories (bow ties, suspenders, etc.). I’m really control freaky so I’ve not asked any else more than that from anyone— even my bridesmaids got to pick their own dress and I bought it. They also get to wear their hair however, wear whatever shoes, and pretty much only have to wear the dress we found and show up on time. So, now B called my fiancé last week (wedding is on 10/10/21 so it’s approaching FAST) and said that he bought the pants… they were the completely wrong color (more yellow than khaki) and my fiancé told him that he needed the pants we sent him the link to. B said that this whole thing was getting too stressful for him and that my fiancé is being a groomzilla. It’s NOT wrong for wanting my groomsmen’s pants to fucking be the same color. B said that since we started the wedding planning that my fiancé hasn’t been the same friend he knew before, but really, we’ve seen more of a change in B than a change in my fiancé. B has become more closed off and blatantly rude. He’s also been flirting a lot more with my fiancé (B is gay btw). So my sweet fiancé texted B and said that he didn’t have to agree to be a groomsman if he wasn’t willing to participate, and B said “well I’ve always worn what I wanted to wear at weddings” and my fiancé was like “were you in the bridal party?” And B said “no, just a guest” which is completely different. Anyway, B said that he’s not going to be in the wedding anymore and he “doesn’t want to be somewhere he isn’t wanted” like what? We never said that, and it’s actually tearing up my fiancé that his ~supposed~ best friend is acting this way towards him.