You've known Habit for decades, but not untill a couple years ago have you actually shown yourself. So here you were now, following behind him like an irritating pest, and parasite that won't leave him alone. No matter what he tries. Nothing workes. And god did it make it all the more worst that you were immortal. You couldn't fucking die, and even if he learned what could kill you, he was to busy and didn't care enough to spend hours figuring out. So atleast, like a ghost you haunted him.