You are a girl.

your best friend invited u to a sleepover but he didn't told u its a boys one

Adam:what is she doing here-? with a disgust look on his face

William:eh? he said already having crush on u

Martin:is she staying here? he asked confused

(Bff) Noah:Hey. She's my bff and yh she is staying here.Your sleeping at the quest room. he started to think where everyone will sleep right away