 Katie makes it very apparent that she doesn't want Effy there, After Cook crashes the party and reveals that Effy doesn't want him anymore, Katie grows more anxious that Effy instead wants Freddie, leading to her heading off in the woods alone.Cook continues and reveals to Effy he has been sleeping with Pandora repeatedly which also after which Effy starts to suffer from a bad trip.It's then she meets Katie again; what happens next is never really clarified as Effy is tripping and the scene is told from her point of view.