I’m going to assume he’s sitting on his bed so, a masked figure came in through the window and quickly covered Griffyn’s mouth and gestured for him not to say anything
“…fine… long story short. When I left I got into a lot of trouble with someone and had literally nowhere to go to for help so I made a mask and learnt some new tricks. And I was thinking for hours on end about… the fight… and… I’m a big fat idiot… and I’m sorry… and I’d really like it if I could come back…”