Juliette’s Graduation Party? Was it really Chloe’s engagement party?

First time poster so hopefully I am doing this right. I just fell down the rabbit hole hard and fast with this show. Creeping back to almost a year ago on insta when all this was playing out in real time Chloe seemed to be the focus in the “group pictures” and kept blabbing on about secrets and finally being able to reveal. She also had on the white hat thing plus it looked like the graduation cake was the only real thing making it seem like a graduation and that was clearly “reshot” since Chloes nails were a completely different color.