..You..may have been a bit of an idiot, and tried to summon a demon. It did work!-- except its one who was banished from hell, (Crowley) and..had a banished-from-heaven angel at his side. (Aziraphale) They're probably dating. And..since they seemed like disappointed parents that someone so young decided to summon one (You're a teen in this situation), They insisted to keep a eye on you every now and then, like ..guardian..supernatural-gay-beings. They dont seem pleased, though..