It’s when the boys and girls separate. This year girls go to a new villa FILLED with boys. Boys stay in old villa and they bring girls in. Since they’re separated from their partners there’s usually some level of cheating. And they can bring people BACK from Casa and stuff. And the thing is that they can’t see what their partners are doing and if they’re being faithful
Last season the boys went to casa and the girl got sent clips of them doing shit. Anywhooo, they decide whether to bring people back from casa and that can cause big rifts in the dynamics and couples. And the boys will also get to talk to girls and decide if they wanna recouple. Butttt, this is all from last season so I’m not 100% if it’s always like that