enefriend
when two people act like enemies, but are actually friends (i.e. the opposite of 'frenemies')
Two teachers, Adrian and Nick are enefriends. They play pranks on each other and talk about the other behind their back to their students, but then play poker together and go to each other's Election Day party.
Enefriend
Pretending to be enemies but, actually friends
Anya is an enefriend towards Hannah
Enefriends
People who think they hate each other, but deep inside they also can't be without each other.
Dwight and Jim from the Office, despite being mortal enemies, also deeply care for each other as well and ultimately feel incomplete when the other is missing, and therefore are actually enefriends.