All I remember is they go through a door or a portal? There’s a bunch of them at this place, I don’t know if they went together or if they bumped into each other. The girl and boy are in a relationship after getting there. Theres this man or alien, something and one of the boys are taken away and made into food and the group eat the food and after are told that they ate the boy. I read it in mid 2014/2015. I borrowed it from a library so it was a physical book. I think it was written by a man. I wish I finished the book