She went back to visit in month four. The trip lasted three days instead of the planned seven. There is a Reddit thread — we will not be linking it — where someone posted "has anyone else's friend gone to Miami and come back a completely different person" and the top comment has 847 upvotes and just says "yes and I'm so happy for her."
The people she stopped talking to have formed their own version of events. The people she kept talking to are already planning a trip down. The ones who were loudest about her "change" are the ones she hasn't spoken to since February. Funny how that works.