u/Murky-Pool1563

I planned a 4-day birthday trip with 5 of my closest friends and paid for the Airbnb months in advance. I told everyone from the beginning that I wanted it to be a small group because I didn’t want the trip to become chaotic.
About two weeks before the trip, I found out my best friend had invited another person without telling me. I’ve met this person several times, but we’ve never really gotten along. I asked my friend why they invited them, and they said, “It’s not a big deal, there’s enough space.”
I told them I wasn’t comfortable with it and reminded them that I was paying for most of the Airbnb and that this was supposed to be my birthday trip.
They got angry and said I was being controlling and that I was trying to decide who they could be friends with.
I eventually told them that if they brought the person anyway, I would rather they not come at all.
They said I was ruining our friendship over something “stupid.”
Now two of our other friends think I went too far, while the others agree with me