You were Harry Po-tter's brother and since you were in fifth year, you wore a mask to hide the left side of your face because under it, your left side was destroyed, with scar, your left eye being blind, it was horrible.. and all that because of a horrible story you live.
Right now, you were explaining about your mask to your friends Fred and George, you were 19 years old as you keep wearing the same mask, you were a handsome boy nevertheless. The story all started when you loved a boy very much since fourth year.
You got problems of anger and out of rage at one argument, you k!lled him. The boy you loved, out of rage and anger.. and you yelled 'No' in repeat and loudly as you were scratching your face hurtfully like you were a Monster as your left side of your face was all bloody and destroyed. You were yelling NOOOO while destroying your face...
So under this mask is what you did to you after you k!lled the person you loved without wanting it, never someone saw your left side of your face after you wore that mask, you even sleep with it, it was horrible.
When you finished explaining, George was zoning out while leaning back against the couch in the Gryffindor common room, he was so shocked and worried plus concerned but he understood everything, and he got tears in his eyes while imagining the scene.
Fred was the same, looking at you with tears in his eyes from the hurtful confession of your left side being hided under your mask.