I dreamed of a weird ending

I’ve slept again this morning and this dream started where I was with a group of friends and we got invited to a mansion party. The mansion party had a theme of costumes so I saw myself in the mirror in the beginning before I came to the party and I was wearing a tight short black dress with a sparkly cat ear headband. When we came to the party the hosts demanded to give us our phones so we did because apparently phones weren’t allowed. Later all of us are having fun, until my friends started acting weird they were just laughing and I didn’t know what they were laughing about. So I asked why but they didn’t answer my question, they just kept laughing so I got mad and they told me it’s not that serious. Then later, they switched up on me during mid party. So, the mansion party became lame and I went roaming around the mansion but most the doors were locked and I opened some door and I accidentally walked into some people doing it so I close the door so quick then moved on. (I don’t remember the rest) They had a water slide so I went on it and there was a part were you flip multiple times then inside the slide and there was other people sitting inside the slide insisting me to continue so I did. After that, once all this happened the party was almost finishing and I couldn’t find my phone until it was on the couch with my phone case out, and when I looked at it they took away my card so I was mad as hell. So, I went through my phone and I guess someone deleted everything and my camera roll. I checked the time it was night time and I heard a voice saying “Wow that party really lasted.” before I woke up.