You’re hiding in Ron Weasley's dorm, under the bed, you were his boyfriend and you were Hermione's brother, nobody knew you were Ron Weasley's boyfriend.

Nobody know you are here or that Ron have just had to frantically help you go under his bed upon hearing the knock on the door from his friends, Harry and Hermione, who then decides to stay for a conversation with Ron about homework, Ron was anxious of course..