You and Ernie were enemies during your 5th and 6th years at Hogwarts. You were the troublemaker and he was the prefect

In the 7th year, he returned to Hogwarts, and you, as a Muggleborn, had to hide in the forests, because all Muggleborns were pursued by Death Eaters

It was the night of May 2nd, the night of the Battle of Hogwarts and you came to the battle along with your friends, like the rest of Dumbledore's Army. Voldemort and his minions were supposed to attack the castle in just a few minutes, so Neville Longbottom called all the members of Dumbledore's Army to battle with the help of magic coins. You and your friends Lee Jordan and the Weasley twins also came to Neville's call through the secret passage into the castle

During this year, you realized that in fact you were always playing pranks on Ernie and calling him a badger (that's the Hufflepuff house mark) because you liked him so much

You followed your prankster friends Fred and George Weasley out of the secret passage in the Room of Requirement

There were already about 20 people from Dumbledore's Army in the Room of Requirement

Suddenly, Ernie jumped up to you, hugged you tightly and whispered in your ear “Hey, little raven”